ECAT Pre Computer Science Chapter 8 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 8 Waves

Try The MCQ's Test For ECAT Physics Chapter 8 Waves

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ECAT Physics Chapter 8 Waves

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Question # 1

The velocity of sound in air not effected by changes in

Question # 2

Which of the following medium/media can transmit both transverse and longitudinal waves:

Question # 3

The distance covered by the wave during one period is called its:

Question # 4

Example of progressive wave is

Question # 5

Which one of the following is an example of resonance

Question # 6

If a wave can be polarized, it must be

Question # 7

A wave, which transfer energy by moving away from the source of disturbance is called a

Question # 8

When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:

Question # 9

The speed of sound in a medium depends on

Question # 10

The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

Question # 11

If the mass of the simple pendulum becomes double, its time period

Question # 12

For transmission of both transverse and longitudinal waves, we can use:

Question # 13

A second's pendulum is a pendulum whose time period is

Question # 14

Which one is not produced by sound waves in air?

Question # 15

As the bob of the pendulum moves to and fro which of the force is experienced by the bob

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be
A. 45°
B. 90°
C. 135°
D. 180°
2 Which one of the following could be the frequency of ultraviolet radiation?
A. 1.0 x 106Hz
B. 1.0 x 109Hz
C. 1.0 x 1012Hz
D. 1.0 x 1015Hz
3 Fluids can transmit:
A. Transverse wave
B. Compressional wave
C. Both of them
D. None of them
4 As the bob of the pendulum moves to and fro which of the force is experienced by the bob
A. its weight
B. tension in the string
C. viscous drag force by air
D. all of them
5 If we increase the length of a simple pendulum four times, its time period will become
A. 2 times
B. 3 times
C. 4 times
D. 6 times
6 Transverse waves can be set up:
A. Solids
B. Liquids
C. Gases
D. All of them
7 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave
8 Two sound waves of slightly different frequencies propagating in the same direction produce beats due to
A. Interference
B. Diffraction
C. Polarization
D. Refraction
9 To hear a clear echo, the reflecting surface must be at a minimum distance of
A. 10 m
B. 16.5 m
C. 33 m
D. 66 m
10 Which one of the following elasticizes is possessed by fluids:
A. Young's elastic modulus (length)
B. Bulk elastic modulus (volume)
C. Modulus of rigidity (shape)
D. None of these

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