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

Which type of wave can be set up in solids

Question # 2

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is

Question # 3

The velocity of sound in air depends upon

Question # 4

A swing has

Question # 5

The waves produced in a microwave oven have frequency

Question # 6

It is possible to recognize a person by hearing his voice even if he is hidden behind a solid wall. This is due to the fact that his voice

Question # 7

The weight 'mg' of the bob is resolved into

Question # 8

The resonance will be sharp, if the amplitude decreases rapidly at a frequency

Question # 9

To hear a clear echo, the reflecting surface must be at a minimum distance of

Question # 10

In the formula for finding the speed of waves in the spring, unit of m in SIn units is:

Question # 11

Which waves are used in sonography?

Question # 12

The expression for restoring force is

Question # 13

A heavily damped system has a fairly

Question # 14

There is no net transfer of energy by particle of medium in

Question # 15

Example of vibratory motion is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 If a wave can be polarized, it must be
A. An electromagnetic wave
B. A longitudinal wave
C. A progressive wave
D. A transverse wave
2 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
3 The square of 0.4 is:
A. Greater than 0.4
B. Smaller than 0.4
C. Equal to 0.4
D. None of them
4 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
5 In case of mechanical waves, we study the motion of
A. a single particle
B. collection of particle
C. any one of them
D. none of them
6 Two sources of sound are said to be coherent if
A. The produce sounds of equal intensity
B. They produce sounds of equal frequency
C. They produce sound waves vibrating with the same phase
D. They produce sound waves with zero or constant phase difference all instant of time
7 Angular frequency 'w' is basically a characteristics of
A. linear motion
B. circular motion
C. both of them
D. none of them
8 In solids, only following type/s of wave can travel:
A. Transverse
B. Longitudinal
C. Both A and B
D. None of them
9 It two waves of amplitude 'a' produce a resultant wave of amplitude a, then the phase difference between them will be
A. 60°
B. 90°
C. 120°
D. 180°
10 While describing the motion of a simple pendulum, the frictional effects are
A. taken into account
B. completely ignored
C. partially ignored
D. none of them

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