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 natural frequency of a pendulum which is vibrating freely, depends upon its

Question # 2

Si units of time period is

Question # 3

Transverse waves can be set up:

Question # 4

The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as

Question # 5

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

Question # 6

When the bob of simple pendulum is at mean position, its K.E will be

Question # 7

The expression of Hook's law is

Question # 8

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

Question # 9

If the time period a simple pendulum is 2 s, its frequency would be

Question # 10

Fidelity refers to

Question # 11

Velocity of sound in vacuum (in m/s) is

Question # 12

One complete round trip of the body about its mean position is called

Question # 13

The waves which propagate through the oscillations of material particles are known as:

Question # 14

When sound waves travel from air to water which of these remains constant?

Question # 15

At 'resonance' the transfer of energy from deriving source to the oscillator is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 In a resonance situation the amplitude of the motion may become extra ordinarily large, if
A. the driving force is large
B. the driving force is zero
C. the driving force may be feeble
D. all of them
2 If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:
A. Stationary waves
B. Transverse waves
C. Both of these
D. None of these
3 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
4 The distance covered by the wave in one second is:
A. Wave number
B. Wave length
C. Frequency
D. Wave speed
5 When the bob of simple pendulum is at mean position, its K.E will be
A. maximum
B. minimum
C. zero
D. all of them
6 Decibel is unit of
A. Intensity of light
B. x-ray radiation capacity
C. sound loudness
D. Energy of radiation
7 Which of the following is the longitudinal waves?
A. Sound waves
B. Waves on plucked string
C. Water waves
D. Light waves
8 A simple pendulum consists of a
A. small light bob
B. small heavy bob
C. big light bob
D. big heavy bob
9 Crests and troughs are formed in:
A. Longitudinal waves
B. Transverse waves
C. Both of these
D. None of these
10 When a body is performing S.H.M., its acceleration is
A. inversely proportional to the displacement
B. directly proportional to the applied force
C. directly proportional to the amplitude
D. directly proportional to the displacement but in opposite direction

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