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

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

Question # 2

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

Question # 3

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:

Question # 4

In transverse waves, the individual particles of the medium move:

Question # 5

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

Question # 6

The velocity of sound is greatest in

Question # 7

Through which character we can distinguish the light waves from sound waves

Question # 8

A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is

Question # 9

Crests and troughs are formed in:

Question # 10

Mechanical waves on the surface of a liquid are

Question # 11

The wave motion set up in any medium depends upon:

Question # 12

Which of the following does not exhibit S.H.M?

Question # 13

Angular frequency 'w' is basically a characteristics of

Question # 14

Transverse waves can be set up:

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Which of the following is an example of a S.H.M?
A. motion of a projectile
B. motion of a train along a circular path
C. motion of swing
D. electrons revolving sound the nucleus
2 Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as
A. waves
B. beat
C. interference
D. resonance
3 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
4 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
5 The waves moving from a sitar to a listener in air are
A. Longitudinal progressive
B. Longitudinal stationary
C. Transverse progressive
D. Transverse stationary
6 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
7 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
8 The portion of the water above its mean level forms a:
A. Crest
B. Trough
C. Both A and B
D. None of these
9 If a freely oscillating system is subjected to an external force, then
A. free vibrations will take place
B. the body will move with its natural frequency
C. forced vibrations will take place
D. none of them
10 The expression for restoring force is
A. F=ma
B. F=kx
C. F= -kx
D. Kx=ma

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