Friday, July 9, 2010
Thursday, July 8, 2010
BSNL Telecom Technical Assistant (TTA) 2008 Paper
1. If the matrix A = is singular, then ? =
a) 3 b) 4 c) 2 d) 5
2. A = is symmetric, then x =
a) 3 b) 4 c) 2 d) 5
3. If A is a 3 x 3 matrix and det(3 A) = k det(A) then k =
a) 9 b) 6 c) 1 d) 27
4. If A = , then A-1 =
a) b) c) d)
5. If A = then A2 is equal to
a) A b) –A c) Null Matrix d) I
6. is a
a) rectangular matrix b) singular matrix
b) non-singular matrix d) skew-symmetric matrix
7. The slope of the straight line whose inclination with negative x-axis is 120º is
a) b) c) 1 d) infinity
8. If two lines whose slopes are m1 and m2 are perpendicular iff
a) m1 = m2 b) m1m2 = 0 c) m1m2 = -1 d) m1 + m2 = -1
9. The rate of increase of the radius of a circle is 1 cm/sec, the rate of increase of its area is 4? cm2/sec at a particular instant. The radius at that instant is
a) 2 cm b) 3 cm c) 4 cm d) 6 cm
10.If the side of a square is increasing at the rate of 0.02 cm/min, the rate at which its area is increasing at the instant when the length of the side is 5 cm is
a) 0.2 cm 2/min b) 0.4 cm 2/min c) 0.1 cm 2/min d) 0.6 cm 2/min
11.A particle is moving on a plane according to the distance-time relationship is given by s = t3 + 6t2 + 8t – 4. When its acceleration is 8 m/sec2, its velocity is
a) 8 m/sec b) 11 m/sec c) 23 m/sec d) -1 m/sec
12.A stone moves vertically upwards according to the distance-time equation s = 16t – 2t2.The greatest height reached by the stone is
a) 4 b) 64 c) 32 d) 96
13.The distance moved by a particle traveling in a straight line in t seconds is given by s = 45t + 11t2 – t3. The time taken by the particle to come to rest is
a) 9 sec b) 5 sec c) 3 sec d) 2 sec
14.The distance s described by a particle in time t is given by the relation s = aet + be-t. The acceleration is equal to
a) velocity b) the distance traveled
c) twice the distance traveled d) the square of the distance traveled
15.The slope of the normal to the curve y = at the point is
a) 9 b) -9 c) d)
17.The normal to the curve y = f(x) will be parallel to x-axis if
a) b) c) d)
18.The maximum point of the function 2×3 – 9×2 + 12x is
a) x = 0 b) x = 5 c) x = 1 d) x = 2
19.The minimum value of 2×3 – 9×2 + 12x – 4 is
a) 1 b) 3 c) 0 d) -2
20.The point of inflection of the function x3 – 3×2 + 3x is
a) (1,0) b) (1,1) c) (6,126) d) (-1,-7)
21.Velocity of sound is greatest in
a) Solids b) Liquids c) Gases d) None of these
22.If the phase difference between the two waves is 2? during superimposition, then the resultant amplitude is
a) Maximum b) Minimum c) Half of maximum d) None of these
23.If two waves of same frequency and same amplitude on superimposition produce a resultant disturbance of the same amplitude, the wave differ in phase by
a) b) c) d)
24.The equation of a plane progressive wave is given by y = 2sin?(0.5x – 200t) where x and y are expressed in cm and t in sec. The wave velocity is
a) 400 cm/sec b) 300 cm/sec c) 200 cm/sec d) 100 cm/sec
25.Equation of a plane progressive wave is given by y = 0.2 cos ?(0.04t + 0.02x – 1/6). The distance is expressed in cm and time in sec. The minimum distance between two particles separated by phase difference ?/2 is radian is
a) 25 cm b) 12.5 cm c) 8 cm d) 4 cm
26.Ultrasonic waves are those waves which
a) Human being can hear b) Human being cannot hear
c) Have high velocity d) Have large amplitude
27.It is possible to distinguish between the transverse and longitudinal waves by studying the property of
a) Interference b) Polarization c) Diffraction d) Reflection
28.The following phenomenon cannot be observed for sound waves
a) Refraction b) Polarization c) Diffraction d) Reflection
29.Doppler shift in frequency does not depend upon
a) Frequency of the wave produced b) Velocity of the source
c) Velocity of the listener/observer d) Distance between source and listener
30.A source of sound of frequency 450 cycles/second is moving towards a stationary observer with 34 m/s speed. If the speed of sound is 340 m/s then the apparent frequency will be
a) 410 cps b) 550 cps c) 500 cps d) 450 cps
31.An observer moves towards a stationary source of sound of frequency n. The apparent frequency heard by him is 2n. If the velocity of sound in air is 332 m/s, then the velocity of observer is
a) 166 m/s b) 664 m/s c) 332 m/s d) 1328 m/s
32.The equation of a wave traveling in a string can be written as y = 3 cos ?(100t – x).Its wavelength is
a) 100 cm b) 5 cm c) 3 cm d) 2 cm
33.Sound velocity is maximum in
a) O2 b) H2 c) He d) N2
34.Phon is the unit of
a) Pitch b) Quality c) Timbre d) Loudness
35.Loudness of sound L and corresponding intensity of sound I are related as
a) L = KI2 b) L = KI c) L = K d) L = K log I
36.The index of refraction of a medium is 1.5. If the speed of light in air is 3 x 108 m/s, then its speed in the medium will be
a) 2 x 108 m/s b) 1.2 x 108 m/s c) 4 x 108 m/s d) 3.2 x 108 m/s
37.The ratio of intensities of the two waves is given by 4:1. The ratio of amplitudes of two waves is
a) 2:1 b) 1:2 c) 4:1 d) 1:4
38.Two source of waves are called coherent if
a) Both have the same amplitude by vibrations
b) Both produce waves of different wavelength having constant phase difference
c) Both produce waves of same wavelength having constant phase difference
d) Both produce waves having the same velocity
39.Which of the following does not support the wave nature of light?
a) Interference b) Diffraction c) Polarization d) Photoelectric effect
40.Velocity of light will be minimum in
a) Vacuum b) Air c) Water d) Glass
41.Wavelength of light of frequency 100 Hz is
a) 2 x 106 m/s b) 3 x 106 m/s c) 4 x 106 m/s d) 5 x 106 m/s
42.A rocket is going away from earth at a speed of 106 m/s. If the wavelength of the light wave emitted by it be 5700 Å, its Doppler’s shift will be
a) 200 Å b) 19 Å c) 20 Å d) 0.2 Å
43.Colour of light is known by its
a) Velocity b) Amplitude c) Frequency d) Polarization
44.A rocket is going away from the earth at a speed 0.2c where c = Speed of light. It emits a signal of frequency 4 x 107 Hz. The frequency observed by an observer on the earth will be
a) 4 x 106 Hz b) 3.3 x 106 Hz c) 3 x 106 Hz d) 5 x 107 Hz
45.A light wave has a frequency of 4 x 1014 Hz and a wavelength of 5 x 10-7 m in a medium. The refractive index of the medium is
a) 1.5 b) 1.33 c) 1.0 d) 0.66
46.Stars are twinkling due to optical phenomenon of
a) Refraction b) Scattering c) Reflection d) Diffraction
47.The splitting of white light into several colours on passing through a glass prism is due to
a) Refraction b) Reflection c) Interference d) Diffraction
48.In Bohr’s model, if the atomic radius of the first orbit is ro, then the radius of the fourth orbit is
a) 16 ro b) ro c) 4 ro d) ro/16
49.The average binding energy per nucleon in the nucleus of an atom is approximately
a) 8 eV b) 8 MeV c) 8 KeV d) 8 Volt
50.The mass equivalent of 931 MeV energy is
a) 1.66 x 10-20 kg b) 1.66 x 10-27 kg
c) 6.02 x 10-24 kg d) 6.02 x 10-27 kg
51.The energy equivalent to 1 a.m.u. is
a) 931 MeV b) 931 eV c) 931 KeV d) 9.31 MeV
52.The ratio of kinetic energy and total energy of an electron in a Bohr orbit is
a) + 2 b) – 1 c) + 1 d) – 2
53.The size of an atom is of the order of
a) 1 Å b) 1 fermi c) 1 nm b) 1 micron
54.The mass defect per nucleon is called
a) Packing fraction b) Binding Energy
c) Ionization Energy d) Excitation Energy
55.Nuclear Binding Energy is equal to
a) Mass of Nucleus b) Mass defect of Nucleus
c) Mass of Proton d) Mass of Neutron
56.The Pfund series of Hydrogen spectrum lies in the region\
a) Infrared b) Visible c) Ultraviolet d) X-Ray
57.The number of neutrons in 92U238 is
a) 92 b) 238 c) 330 d) 146
58.The energy required to remove an electron in a hydrogen atom from n = 10 state is
a) 136.0 eV b) 13.60 eV c) 1.36 eV d) 0.136 eV
59.The angular momentum of electron in nth orbit is given by
a) b) c) d)
60.The rest energy of an electron is
a) 510 MeV b) 51 MeV c) 931 MeV d) 93.1 MeV
61.In the lowest energy level of hydrogen atom, the electron has the angular momentum
a) ?/h b) h/? c) h/2? d) 2?/h
62.Laser is working in the principle of
a) Stimulated emission of radiation b) Spontaneous emission of radiation
c) Population inversion d) Normal population
63.The output beam of Ruby Laser has the wavelength of
a) 6943 Å b) 6328 Å c) 6300 Å d) 5500 Å
64.In the He-Ne Laser , the He-Ne in the mixture of
a) 10:1 b) 2:1 c) 4:1 d) 5:1
65.The full form of LIDAR is
a) Light Amplitude and Ranging
b) Light Detection and Ranging
c) Light Defect and Ranging
d) Laser Detection and Ranging
66.Which one of the following is solid state laser?
a) Nd:YAG Laser b) He-Ne Laser c) CO2 Laser d) GaAs Laser
67.Populaton Inversion is achieved by means of
a) Optical pumping b) Gas pumping
c) Mechanical pumping d) Solid pumping
68.GRASERS are
a) Galium Arsenide Lasers b) Gamma Ray Lasers
c) General Ranging Lasers d) Gallium Radium Lasers
69.LASER Beam is
a) Highly monochromatic b) Highly Intense
c) Highly Coherent d) All of the above
70.Which one of the following cannot be used as a pulsed device?
a) CFA b) BWO c) TWT d) Magnetron
71.Klystron works in the principle of
a) Velocity Modulation b) Amplitude Modulation
c) Frequency Modulation d) Phase Modulation
72.Strapping in Magnetron is used to
a) prevent mode jumping b) ensure bunching
c) improve the phase focusing effect d) prevent cathode back heating
73.Which is not a TWT slow wave structure
a) Coupled cavity b) helix c) ring bars d) periodic permanent magnet
74.30 to 300 MHz frequency range is categorized as
a) MF b) VHF c) UHF d) SHF
75.Find the centre of the circle whose two extremities of diameter are (2,3) & (4,-1) is
a) (3,1) b) (6,8) c) (3,-2) d) (-6,8)
76.The centre and radius of the circle x2+y2+4x–6y+2=0 are
a) (-2,3) & 5 b) (-2,3) & 5 c) (2,-3) & 5 d) (2,-3) & 2
77.The angle between the straight lines x + 2y -3 = 0 & 2x + 4y -4 = 0 is
a) ? = 90º b) ? = 60º c) ? = 0º d) ? = 45º
78.The condition for the pair of straight lines ax2+2xy+by2+2x+2y+3=0 to be perpendicular is
a) h2–ab = 0 b) ab = 2 c) a+b = 0 d) a-b = 0
79.The particular integral of +3 + 2y = 2e-x is
a) 2xe-x b) 2e-x c) x2e-x d) xe-x
80.The particular integral of +4 + 4y = 3sin2x is
a) – cos2x b) cos2x c) sin2x d) 3xcos2x
81.The complementary function of (D2+3)y = e-x is
a) Ae x + Be x b) (A+Bx) e x
c) A cos3x + B sin3x d) A cos x + B sin x
82.The solution of (D2-2D-15)y = 0 is
a) y = Ae3x + Be5x b) y = Ae-3x + Be-5x
c) y = Ae5x + Be-3x d) y = Ae-5x + Be3x
83.The particular integral of + y = 3 is
a) 3 b) x/3 c) 3/y d) -3
84.The area bounded by x2 = 2y, the x-axis and the lines x = 1 and x = 3 is
a) b) c) d)
85.The area of the curve y = sin x bounded by the x-axis from x = 0 to x = 2? is
a) 0.5 b) 1.0 c) 1.5 d) 2.0
86.The area enclosed by the curve xy = 8 and x-axis from x = 1 to x = 4 is
a) 8 log 2 b) 16 log 2 c) 4 log 2 d) 2 log 4
87.The area bounded by the curve x = 3y2 – 9 and the lines x = 0, y = 0 and y = 1 is
a) 8 b) c) d) 3
88.When the area enclosed by the curve y = and the x-axis from x = 0 and x = 4 is rotated about the x-axis, the volume generated is
a) b) c) d)
89.The area included between the curve y = x – x2 and the x-axis revolves about the x-axis. The volume generated by the area is
a) b) c) d)
90.If the area enclosed between the curve y2 = x3 + 5x and the x-axis from x = 2 to x = 4 is revolved about the x-axis, the volume of the solid generated is
a) 45? b) 90? c) 120? d) 60?
91.
a) 12 b) 0 c) 6 d) 18
92. =
a) sin-1x b) cos-1x c) tan-1x c) cot-1x
93.
a) log f(x) b) 2 c) f(x) d) f(x)/2
94.
a) sec x b) tan x c) cos x d) cot x
95.The acceleration of a particle at any time t is given by 3×2 – 2x + 1, then the velocity of the particle at any time is
a) x3 -2x 2 + x b) x3 -x 2 + x c) x 2 + x d) x 2 + x +1
96.The Laplace transform of f(t) = t2 e-3t is
a) b) c) d)
97.The Laplace transform of f(t) = 1 + cos2t is
a) b) c) d)
98.The Laplace transform of unit step function is
a) b) c) 1 d)
99.The initial value of the function F(S) =
a) 1 b) 0 c) 2 d)
100.The inverse Laplace transform of is
a) e-t b) 1-e-t c) 1- et d) 2(1+ e-t)
101.The inverse Laplace transform of is
a) et cos2t b) et sin2t c) e-t cos2t d) e-t sin2t
102.(1+i)3 is equal to
a) 3 + 3i b) 1 + 3i c) 3 – 3i d) 2i – 2
103.The value of i13+i14+i15+i16 is
a) 0 b) -1 c) i d) –i
104. The polar form of complex number -1- i is
a) 2(cos + i sin ) b) 2(cos + i sin )
b) 2(cos – i sin ) d) 2(cos + i sin )
105.The modulus of a complex number is
a) b) 2 c) 1 d)
106.The value of (3+?+3?2)4 is
a) 16 b) 16 ? c) -16 ? d) 0
107.The value of is
a) cos 2? + i sin 2? b) cos ? + i sin ?
c) cos ? – i sin ? d) cos 26? + i sin 26?
108.The value of the fourier coefficient bn for the function f(x) = cosx defined in (-?, ?) is
a) 0 b) 1 c) ? d) -2 ?
109. The value of the fourier coefficient a0 for the half range series for f(x) defined in (0, ?) is
a) a0 = b) a0 =
c) a0 = d) 0
110.The value of the fourier coefficient an for the function f(x) is odd is
a) 0 b) an =
c) an= d) a0 =
111.The value of the fourier coefficient bn for the function f(x) is even is
a) 0 b) bn =
c) bn = d) bn =
112.If u = exy then x
a) u b) u logeu c) logeu d) ueu
113.If u = then the value of is
a) b) 0 c) x+y d) -1
114.If u = sin-1 , then the value of is
a) b) c) d)
115.If u = xy, then is
a) y/x b) xyx-1 c) yxy-1 d) xy-1
116. Given = = 6 and . = 18, the angle between and is
a) b) c) d)
117.( – ) x ( + ) =
a) 2 x b) x c) 2 x d) 2 – 2
118.The volume of the parallelepiped whose three coterminous edges are represented by the vectors + , + , + is
a) 2 b) 3 c) 4 d) 1
119.The value of p such that the vectors -2 + 3 , 4 +3 – and 11 +p + 7 are coplanar is
a) -7 b) 0 c) -12 d) 12
120.Reverberation of sound means
a) existence of sound in a room
b) vibration of sound waves
c) existence of sound eventhough the source of sound is cutoff
d) strong echoes
121.Ultrasonic waves can be produced by
a) Piezo-electric effect b) Inverse Piezo-electric effect
c) Magnetostriction effect d) Both b & c
122.The Sabine’s formula for reverberation time is
a) T = b) T =
c) T = d) T = 0.16 aAS
a) 3 b) 4 c) 2 d) 5
2. A = is symmetric, then x =
a) 3 b) 4 c) 2 d) 5
3. If A is a 3 x 3 matrix and det(3 A) = k det(A) then k =
a) 9 b) 6 c) 1 d) 27
4. If A = , then A-1 =
a) b) c) d)
5. If A = then A2 is equal to
a) A b) –A c) Null Matrix d) I
6. is a
a) rectangular matrix b) singular matrix
b) non-singular matrix d) skew-symmetric matrix
7. The slope of the straight line whose inclination with negative x-axis is 120º is
a) b) c) 1 d) infinity
8. If two lines whose slopes are m1 and m2 are perpendicular iff
a) m1 = m2 b) m1m2 = 0 c) m1m2 = -1 d) m1 + m2 = -1
9. The rate of increase of the radius of a circle is 1 cm/sec, the rate of increase of its area is 4? cm2/sec at a particular instant. The radius at that instant is
a) 2 cm b) 3 cm c) 4 cm d) 6 cm
10.If the side of a square is increasing at the rate of 0.02 cm/min, the rate at which its area is increasing at the instant when the length of the side is 5 cm is
a) 0.2 cm 2/min b) 0.4 cm 2/min c) 0.1 cm 2/min d) 0.6 cm 2/min
11.A particle is moving on a plane according to the distance-time relationship is given by s = t3 + 6t2 + 8t – 4. When its acceleration is 8 m/sec2, its velocity is
a) 8 m/sec b) 11 m/sec c) 23 m/sec d) -1 m/sec
12.A stone moves vertically upwards according to the distance-time equation s = 16t – 2t2.The greatest height reached by the stone is
a) 4 b) 64 c) 32 d) 96
13.The distance moved by a particle traveling in a straight line in t seconds is given by s = 45t + 11t2 – t3. The time taken by the particle to come to rest is
a) 9 sec b) 5 sec c) 3 sec d) 2 sec
14.The distance s described by a particle in time t is given by the relation s = aet + be-t. The acceleration is equal to
a) velocity b) the distance traveled
c) twice the distance traveled d) the square of the distance traveled
15.The slope of the normal to the curve y = at the point is
a) 9 b) -9 c) d)
17.The normal to the curve y = f(x) will be parallel to x-axis if
a) b) c) d)
18.The maximum point of the function 2×3 – 9×2 + 12x is
a) x = 0 b) x = 5 c) x = 1 d) x = 2
19.The minimum value of 2×3 – 9×2 + 12x – 4 is
a) 1 b) 3 c) 0 d) -2
20.The point of inflection of the function x3 – 3×2 + 3x is
a) (1,0) b) (1,1) c) (6,126) d) (-1,-7)
21.Velocity of sound is greatest in
a) Solids b) Liquids c) Gases d) None of these
22.If the phase difference between the two waves is 2? during superimposition, then the resultant amplitude is
a) Maximum b) Minimum c) Half of maximum d) None of these
23.If two waves of same frequency and same amplitude on superimposition produce a resultant disturbance of the same amplitude, the wave differ in phase by
a) b) c) d)
24.The equation of a plane progressive wave is given by y = 2sin?(0.5x – 200t) where x and y are expressed in cm and t in sec. The wave velocity is
a) 400 cm/sec b) 300 cm/sec c) 200 cm/sec d) 100 cm/sec
25.Equation of a plane progressive wave is given by y = 0.2 cos ?(0.04t + 0.02x – 1/6). The distance is expressed in cm and time in sec. The minimum distance between two particles separated by phase difference ?/2 is radian is
a) 25 cm b) 12.5 cm c) 8 cm d) 4 cm
26.Ultrasonic waves are those waves which
a) Human being can hear b) Human being cannot hear
c) Have high velocity d) Have large amplitude
27.It is possible to distinguish between the transverse and longitudinal waves by studying the property of
a) Interference b) Polarization c) Diffraction d) Reflection
28.The following phenomenon cannot be observed for sound waves
a) Refraction b) Polarization c) Diffraction d) Reflection
29.Doppler shift in frequency does not depend upon
a) Frequency of the wave produced b) Velocity of the source
c) Velocity of the listener/observer d) Distance between source and listener
30.A source of sound of frequency 450 cycles/second is moving towards a stationary observer with 34 m/s speed. If the speed of sound is 340 m/s then the apparent frequency will be
a) 410 cps b) 550 cps c) 500 cps d) 450 cps
31.An observer moves towards a stationary source of sound of frequency n. The apparent frequency heard by him is 2n. If the velocity of sound in air is 332 m/s, then the velocity of observer is
a) 166 m/s b) 664 m/s c) 332 m/s d) 1328 m/s
32.The equation of a wave traveling in a string can be written as y = 3 cos ?(100t – x).Its wavelength is
a) 100 cm b) 5 cm c) 3 cm d) 2 cm
33.Sound velocity is maximum in
a) O2 b) H2 c) He d) N2
34.Phon is the unit of
a) Pitch b) Quality c) Timbre d) Loudness
35.Loudness of sound L and corresponding intensity of sound I are related as
a) L = KI2 b) L = KI c) L = K d) L = K log I
36.The index of refraction of a medium is 1.5. If the speed of light in air is 3 x 108 m/s, then its speed in the medium will be
a) 2 x 108 m/s b) 1.2 x 108 m/s c) 4 x 108 m/s d) 3.2 x 108 m/s
37.The ratio of intensities of the two waves is given by 4:1. The ratio of amplitudes of two waves is
a) 2:1 b) 1:2 c) 4:1 d) 1:4
38.Two source of waves are called coherent if
a) Both have the same amplitude by vibrations
b) Both produce waves of different wavelength having constant phase difference
c) Both produce waves of same wavelength having constant phase difference
d) Both produce waves having the same velocity
39.Which of the following does not support the wave nature of light?
a) Interference b) Diffraction c) Polarization d) Photoelectric effect
40.Velocity of light will be minimum in
a) Vacuum b) Air c) Water d) Glass
41.Wavelength of light of frequency 100 Hz is
a) 2 x 106 m/s b) 3 x 106 m/s c) 4 x 106 m/s d) 5 x 106 m/s
42.A rocket is going away from earth at a speed of 106 m/s. If the wavelength of the light wave emitted by it be 5700 Å, its Doppler’s shift will be
a) 200 Å b) 19 Å c) 20 Å d) 0.2 Å
43.Colour of light is known by its
a) Velocity b) Amplitude c) Frequency d) Polarization
44.A rocket is going away from the earth at a speed 0.2c where c = Speed of light. It emits a signal of frequency 4 x 107 Hz. The frequency observed by an observer on the earth will be
a) 4 x 106 Hz b) 3.3 x 106 Hz c) 3 x 106 Hz d) 5 x 107 Hz
45.A light wave has a frequency of 4 x 1014 Hz and a wavelength of 5 x 10-7 m in a medium. The refractive index of the medium is
a) 1.5 b) 1.33 c) 1.0 d) 0.66
46.Stars are twinkling due to optical phenomenon of
a) Refraction b) Scattering c) Reflection d) Diffraction
47.The splitting of white light into several colours on passing through a glass prism is due to
a) Refraction b) Reflection c) Interference d) Diffraction
48.In Bohr’s model, if the atomic radius of the first orbit is ro, then the radius of the fourth orbit is
a) 16 ro b) ro c) 4 ro d) ro/16
49.The average binding energy per nucleon in the nucleus of an atom is approximately
a) 8 eV b) 8 MeV c) 8 KeV d) 8 Volt
50.The mass equivalent of 931 MeV energy is
a) 1.66 x 10-20 kg b) 1.66 x 10-27 kg
c) 6.02 x 10-24 kg d) 6.02 x 10-27 kg
51.The energy equivalent to 1 a.m.u. is
a) 931 MeV b) 931 eV c) 931 KeV d) 9.31 MeV
52.The ratio of kinetic energy and total energy of an electron in a Bohr orbit is
a) + 2 b) – 1 c) + 1 d) – 2
53.The size of an atom is of the order of
a) 1 Å b) 1 fermi c) 1 nm b) 1 micron
54.The mass defect per nucleon is called
a) Packing fraction b) Binding Energy
c) Ionization Energy d) Excitation Energy
55.Nuclear Binding Energy is equal to
a) Mass of Nucleus b) Mass defect of Nucleus
c) Mass of Proton d) Mass of Neutron
56.The Pfund series of Hydrogen spectrum lies in the region\
a) Infrared b) Visible c) Ultraviolet d) X-Ray
57.The number of neutrons in 92U238 is
a) 92 b) 238 c) 330 d) 146
58.The energy required to remove an electron in a hydrogen atom from n = 10 state is
a) 136.0 eV b) 13.60 eV c) 1.36 eV d) 0.136 eV
59.The angular momentum of electron in nth orbit is given by
a) b) c) d)
60.The rest energy of an electron is
a) 510 MeV b) 51 MeV c) 931 MeV d) 93.1 MeV
61.In the lowest energy level of hydrogen atom, the electron has the angular momentum
a) ?/h b) h/? c) h/2? d) 2?/h
62.Laser is working in the principle of
a) Stimulated emission of radiation b) Spontaneous emission of radiation
c) Population inversion d) Normal population
63.The output beam of Ruby Laser has the wavelength of
a) 6943 Å b) 6328 Å c) 6300 Å d) 5500 Å
64.In the He-Ne Laser , the He-Ne in the mixture of
a) 10:1 b) 2:1 c) 4:1 d) 5:1
65.The full form of LIDAR is
a) Light Amplitude and Ranging
b) Light Detection and Ranging
c) Light Defect and Ranging
d) Laser Detection and Ranging
66.Which one of the following is solid state laser?
a) Nd:YAG Laser b) He-Ne Laser c) CO2 Laser d) GaAs Laser
67.Populaton Inversion is achieved by means of
a) Optical pumping b) Gas pumping
c) Mechanical pumping d) Solid pumping
68.GRASERS are
a) Galium Arsenide Lasers b) Gamma Ray Lasers
c) General Ranging Lasers d) Gallium Radium Lasers
69.LASER Beam is
a) Highly monochromatic b) Highly Intense
c) Highly Coherent d) All of the above
70.Which one of the following cannot be used as a pulsed device?
a) CFA b) BWO c) TWT d) Magnetron
71.Klystron works in the principle of
a) Velocity Modulation b) Amplitude Modulation
c) Frequency Modulation d) Phase Modulation
72.Strapping in Magnetron is used to
a) prevent mode jumping b) ensure bunching
c) improve the phase focusing effect d) prevent cathode back heating
73.Which is not a TWT slow wave structure
a) Coupled cavity b) helix c) ring bars d) periodic permanent magnet
74.30 to 300 MHz frequency range is categorized as
a) MF b) VHF c) UHF d) SHF
75.Find the centre of the circle whose two extremities of diameter are (2,3) & (4,-1) is
a) (3,1) b) (6,8) c) (3,-2) d) (-6,8)
76.The centre and radius of the circle x2+y2+4x–6y+2=0 are
a) (-2,3) & 5 b) (-2,3) & 5 c) (2,-3) & 5 d) (2,-3) & 2
77.The angle between the straight lines x + 2y -3 = 0 & 2x + 4y -4 = 0 is
a) ? = 90º b) ? = 60º c) ? = 0º d) ? = 45º
78.The condition for the pair of straight lines ax2+2xy+by2+2x+2y+3=0 to be perpendicular is
a) h2–ab = 0 b) ab = 2 c) a+b = 0 d) a-b = 0
79.The particular integral of +3 + 2y = 2e-x is
a) 2xe-x b) 2e-x c) x2e-x d) xe-x
80.The particular integral of +4 + 4y = 3sin2x is
a) – cos2x b) cos2x c) sin2x d) 3xcos2x
81.The complementary function of (D2+3)y = e-x is
a) Ae x + Be x b) (A+Bx) e x
c) A cos3x + B sin3x d) A cos x + B sin x
82.The solution of (D2-2D-15)y = 0 is
a) y = Ae3x + Be5x b) y = Ae-3x + Be-5x
c) y = Ae5x + Be-3x d) y = Ae-5x + Be3x
83.The particular integral of + y = 3 is
a) 3 b) x/3 c) 3/y d) -3
84.The area bounded by x2 = 2y, the x-axis and the lines x = 1 and x = 3 is
a) b) c) d)
85.The area of the curve y = sin x bounded by the x-axis from x = 0 to x = 2? is
a) 0.5 b) 1.0 c) 1.5 d) 2.0
86.The area enclosed by the curve xy = 8 and x-axis from x = 1 to x = 4 is
a) 8 log 2 b) 16 log 2 c) 4 log 2 d) 2 log 4
87.The area bounded by the curve x = 3y2 – 9 and the lines x = 0, y = 0 and y = 1 is
a) 8 b) c) d) 3
88.When the area enclosed by the curve y = and the x-axis from x = 0 and x = 4 is rotated about the x-axis, the volume generated is
a) b) c) d)
89.The area included between the curve y = x – x2 and the x-axis revolves about the x-axis. The volume generated by the area is
a) b) c) d)
90.If the area enclosed between the curve y2 = x3 + 5x and the x-axis from x = 2 to x = 4 is revolved about the x-axis, the volume of the solid generated is
a) 45? b) 90? c) 120? d) 60?
91.
a) 12 b) 0 c) 6 d) 18
92. =
a) sin-1x b) cos-1x c) tan-1x c) cot-1x
93.
a) log f(x) b) 2 c) f(x) d) f(x)/2
94.
a) sec x b) tan x c) cos x d) cot x
95.The acceleration of a particle at any time t is given by 3×2 – 2x + 1, then the velocity of the particle at any time is
a) x3 -2x 2 + x b) x3 -x 2 + x c) x 2 + x d) x 2 + x +1
96.The Laplace transform of f(t) = t2 e-3t is
a) b) c) d)
97.The Laplace transform of f(t) = 1 + cos2t is
a) b) c) d)
98.The Laplace transform of unit step function is
a) b) c) 1 d)
99.The initial value of the function F(S) =
a) 1 b) 0 c) 2 d)
100.The inverse Laplace transform of is
a) e-t b) 1-e-t c) 1- et d) 2(1+ e-t)
101.The inverse Laplace transform of is
a) et cos2t b) et sin2t c) e-t cos2t d) e-t sin2t
102.(1+i)3 is equal to
a) 3 + 3i b) 1 + 3i c) 3 – 3i d) 2i – 2
103.The value of i13+i14+i15+i16 is
a) 0 b) -1 c) i d) –i
104. The polar form of complex number -1- i is
a) 2(cos + i sin ) b) 2(cos + i sin )
b) 2(cos – i sin ) d) 2(cos + i sin )
105.The modulus of a complex number is
a) b) 2 c) 1 d)
106.The value of (3+?+3?2)4 is
a) 16 b) 16 ? c) -16 ? d) 0
107.The value of is
a) cos 2? + i sin 2? b) cos ? + i sin ?
c) cos ? – i sin ? d) cos 26? + i sin 26?
108.The value of the fourier coefficient bn for the function f(x) = cosx defined in (-?, ?) is
a) 0 b) 1 c) ? d) -2 ?
109. The value of the fourier coefficient a0 for the half range series for f(x) defined in (0, ?) is
a) a0 = b) a0 =
c) a0 = d) 0
110.The value of the fourier coefficient an for the function f(x) is odd is
a) 0 b) an =
c) an= d) a0 =
111.The value of the fourier coefficient bn for the function f(x) is even is
a) 0 b) bn =
c) bn = d) bn =
112.If u = exy then x
a) u b) u logeu c) logeu d) ueu
113.If u = then the value of is
a) b) 0 c) x+y d) -1
114.If u = sin-1 , then the value of is
a) b) c) d)
115.If u = xy, then is
a) y/x b) xyx-1 c) yxy-1 d) xy-1
116. Given = = 6 and . = 18, the angle between and is
a) b) c) d)
117.( – ) x ( + ) =
a) 2 x b) x c) 2 x d) 2 – 2
118.The volume of the parallelepiped whose three coterminous edges are represented by the vectors + , + , + is
a) 2 b) 3 c) 4 d) 1
119.The value of p such that the vectors -2 + 3 , 4 +3 – and 11 +p + 7 are coplanar is
a) -7 b) 0 c) -12 d) 12
120.Reverberation of sound means
a) existence of sound in a room
b) vibration of sound waves
c) existence of sound eventhough the source of sound is cutoff
d) strong echoes
121.Ultrasonic waves can be produced by
a) Piezo-electric effect b) Inverse Piezo-electric effect
c) Magnetostriction effect d) Both b & c
122.The Sabine’s formula for reverberation time is
a) T = b) T =
c) T = d) T = 0.16 aAS
Sunday, July 4, 2010
COMMON ENTRANCE TEST INFORMATION
Exam Name Announcement Date | Form Availability | Form Submission (Last Date) | Exam Date and Time | Details |
|---|---|---|---|---|
| AIMA-MAT -1 First week of January 2011 | 2010/1/1First week of January-2011 to Last week of January-2011 payment details | 2010/1/25Last week of January-2011 | 2011/2/1First week of February-2011 Last held on Paper Based: Sunday, 7-Feb-2010, Online: 13 Feb 2010 onwards | Exam Details Official Website |
| AIMA-MAT -2 Announcement Made | 2010/03/08Second week of March-2010 to Till 07 April 2010 (Wednesday) payment details | 2010/04/15Paper Based: 10-April-2010 ; Online Test 12-April-2010 | 2010/05/02Paper Based: Sunday, 2-May-2010 Online: Saturday, 8-May-2010 onwards | Exam Details Official Website |
| AIMA-MAT -3 First week of July - 2010 | 2009/07/1First week of July-2010 to Second week of August - 2010 payment details | 2009/8/9Second week of August - 2010 | 2009/9/5First week of September-2010 Last held on Paper Based: Sunday, 6- Sep-2009 Online: Monday, 7-Sep-2009 onwards | Exam Details Official Website |
| AIMA-MAT -4 Third week of October-2010 | 2009/10/11Third week of October-2010 to Second week of November-2010 payment details | 2009/11/8Second week of November-2010 | 2009/12/5First week of December-2010 Last held on Paper Based: Sunday, 6-Dec-2009, Online: 12- Dec-2009 onwards | Exam Details Official Website |
| ATMA - AIMS Test for Management Admissions Second week of December 2010 | 2010/1/6Second week of December 2010 to Last week of January - 2011 payment details | 2011/1/31Last week of January 2011 | 2010/2/13Second week of February-2010 Last held on Sunday, 14-Feb-2010, 1:30 PM to 5:00 PM | Exam Details Official Website |
| CAT (Common Admission Test) Last week of August 2010 | 2009/9/01First week of September 2010 to First week of October 2010 payment details | 2009/10/01First week of October | 2010/11/22End of November 2010 onwards Last held on Saturday, 28-Nov-2009 – Monday, 7-Dec-2009. | Exam Details Official Website |
| Department of Financial Studies, University of Delhi South Campus, New Delhi Last week of January-2011 | 2011/1/17Third week of January-2011 to Third week of February-2011 payment details | 2011/2/28Last week of February-2011 | 2011/3/27Last week of March 2011 Last held on Sunday, 21st March 2010 11:00 AM to 1:00 PM | Exam Details Official Website |
| FMS (Faculty of Management Studies, University of New Delhi) First week of October-2010 | 2010/10/4First week of October 2010 to Last week November-2010 payment details | 2009/11/29Last week of November 2010 | 2011/1/9Second week of January-2011 Last held on Sunday, 10-Jan-2010, 2:00 PM to 5:00 PM | Exam Details Official Website |
| IBSAT Announcement Made | 2010/04/12First Week of April payment details | 2010/04/1818-April 2010 | 2010/04/25Sunday, 25-April-2010 10:00 AM to 12:00 PM | Exam Details Official Website |
| IIFT (Indian Institute of Foreign Trade) Mid July-2010 | 2009/7/15Mid July-2010 to Mid August-2010 payment details | 2009/9/27Last week of September-2010 | 2009/11/28End November-2010 Last held on Sunday, 22-Nov-2009, 10:00 AM to 12:00 noon | Exam Details Official Website |
| Institute of Rural Management Anand First week of August-2010 | 2010/8/2First week of August-2010 to Last week of September-2010 payment details | 2009/9/27Last week of September-2010 | 2009/11/8Second week of November-2009 Last held on Sunday, 8-Nov-2008, 9:15 AM to 12:15 PM | Exam Details Official Website |
| JMET Second week of August-2010 | 2010/9/1First week of September 2010 to Second week of October-2010 payment details | 2010/10/9Mid October-2010 | 2010/12/6 Second week of December-2010 Last held on Sunday, 13-Dec-2009, 10:00 AM to 1:00 PM | Exam Details Official Website |
| KIIT University, Bhubaneswar Mid October-2010 | 2010/10/15Mid October-2010 to End of December -2010 payment details | 2010/12/27Last week of December-2010 | 2010/01/9 Second week of January-2010 Last held on Sunday, 10-Jan-2009, | Exam Details Official Website |
| MAH-MBA/MMS- CET Mid January-2011 | 2011/1/6Second week of January-2011 to First week of February-2011 payment details | 2010/2/1First week of February-2010 | 2010/2/15Mid February-2011 Last held on Sunday, 21-Feb-2010, 2:00 PM | Exam Details Official Website |
| National Institute of fashion Technology Last week of November - 2010 | 20010/11/29Last week of November-2010 to First week of January 2011 payment details | 2011/1/17Third week of January-2011 | 2010/2/20Third week of February-2010 Last held on Sunday, 21-Feb-2010 | Exam Details Official Website |
| NMAT First week of October-2010 | 2009/10/27Last week of October-2010 to First week of December 2010 payment details | 2009/12/1First week of December-2010 | 2010/1/28Last week of January-2010 Last held on 30-Jan-2009 onwards | Exam Details Official Website |
| SNAP First week of August-2010 | 2010/08/27Last week of August-2010 to Last week of November-2010 payment details | 2010/11/30End of November-2010 | 2010/12/15Mid December-2010 Last held on Sunday, 20-Dec-2009, 2:00 PM to 4:00 PM | Exam Details Official Website |
| TISS (TATA Institute of Social Sciences) First week of September-2010 | 2009/10/1First week of September-2010 to Third week of October-2010 payment details | 2009/10/21Last week of October-2010 | 2010/12/13 Second week of December-2010 Last held on Sunday, 13-Dec-2009, 10:00 AM to 12:00 noon | Exam Details Official Website |
| XAT Last week of August-2010 | 2010/9/1First week of September-2010 to Last week of November-2010 payment details | 2010/11/30First week of December-2010 | 2011/1/3First week of January-2011 Last held on Sunday, 3-Jan-2010 | Exam Details Official Website |
S.N.D.T. Women’s University, Mumbai DESCRIPTION OF ADMISSION TEST
| Sr. | Test | Marks | Time / Duration |
|---|---|---|---|
| 1 | General Ability Test (GAT) 1) Quantitative Ability 2) Communication Ability 3) English Comprehension 4) Analytical Ability 5) General Knowledge | 40 | 1 hr. Duration |
| 2 | Creative Ability Test (CAT) | 60 | 1 hr. 30 mins. Duration |
| Total | 100 | 2 Hours 30 Minutes | |
1) Quantitative Ability: This sub-test is designed to test the quantitative ability of the candidates. The sub test consists of questions on Addition, Multiplication, Division, Fractions, Percentage, Rate of Interest, Work and Task, Ratio and Proportion, Distance.
2) Communication Ability: This sub-test is aimed at testing the language ability of the candidates in day to day communication in English. It includes questions on synonyms, antonyms, words with corresponding meanings, singular, plural, one word substitutes, idioms and phrases, correct spellings, etc.
3) English Comprehension: This sub-test is aimed to test one’s ability to comprehend a situation from a given passage.
4) Analytical Ability: This sub-test is designed to test the candidate's inference and logic from the given information.
5) General Knowledge and Current Affairs: This sub-test is designed to test the candidate’s general knowledge and current affairs.
2) Communication Ability: This sub-test is aimed at testing the language ability of the candidates in day to day communication in English. It includes questions on synonyms, antonyms, words with corresponding meanings, singular, plural, one word substitutes, idioms and phrases, correct spellings, etc.
3) English Comprehension: This sub-test is aimed to test one’s ability to comprehend a situation from a given passage.
4) Analytical Ability: This sub-test is designed to test the candidate's inference and logic from the given information.
5) General Knowledge and Current Affairs: This sub-test is designed to test the candidate’s general knowledge and current affairs.
| Sr. | Test | Marks | Time / Duration |
|---|---|---|---|
| 1 | General Ability Test 1) Quantitative Ability 2) Communication Ability 3) English Comprehension 4) Analytical Ability 5) General Knowledge and Current Affairs | 30 | 30 mins. Duration |
| 2 | Managerial Ability Test (MAT) 1) Case Study 2) Logical Ability | 30 | 1 hr Duration |
| 3 | Creative Ability Test (CAT) | 40 | 1 hr. Duration |
| Total | 100 | 2 Hours 30 Minutes | |
2) Logical Ability: This sub-test is aimed to evaluate the candidate’s ability to identify the logic or reason involved in a particular problem given and applying the logic in solving the problem. Concepts and practice of creative and lateral thinking are likely to be useful.
Saturday, July 3, 2010
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