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

The expression of Hook's law is

Question # 3

Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as

Question # 4

In the production of beats by 2 waves of same amplitude and nearly same frequency, the maximum intensity to each of the constituent waves is

Question # 5

If a freely oscillating system is subjected to an external force, then

Question # 6

Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:

Question # 7

Which one of the following wave motions is transverse:

Question # 8

The velocity of sound is greatest in

Question # 9

Two sources of sound are said to be coherent if

Question # 10

A weakly damped system has fairly

Question # 11

The expression for restoring force is

Question # 12

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 # 13

The maximum displacement of a body on either side of its equilibrium position is called

Question # 14

In the same medium, velocity of the wave:

Question # 15

The loudness and pitch of a sound note depends on

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The damping depends upon the
A. amplitude
B. sharpness
C. both of them
D. none of them
2 The expression of Hook's law is
A. F=ma
B. F=kx
C. F= -kx
D. -kx=ma
3 The weight 'mg' of the bob is resolved into
A. one component
B. two components
C. three components
D. four components
4 The distance covered by the wave during one period is called its:
A. Wave number
B. Frequency
C. Wavelength
D. Time period
5 Which of the following is not mechanical wave?
A. Sound wave
B. Light wave
C.
wave produced in spring
D. None of them
6 In compressional wave,the layer of medium having reduced pressure is called:
A. Compression
B. Elasticity
C. Node
D. Rarefaction
7 The restoring force always directed towards the
A. extreme position
B. mean position
C. both of them
D. none of them
8 When two waves with same frequency and constant phase difference phase difference interfere
A. There is a gain of energy
B. There is a loss of energy
C. The energy is redistributed and the distribution changes with time
D. The energy is redistributed and the distribution remains constant with time
9 Which one of the following wave motions is transverse:
A. Wave motion produced in water when a piece of stone is thrown into it
B. Pulling of weight hanging vertically with a spiral spring
C. Both of these
D. None of these
10 Example of vibratory motion is
A. mass suspended from a spring
B. a bob of simple pendulum
C. mass attached to a spring placed
D. all of them

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