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

When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be

Question # 2

The velocity of sound in air depends upon

Question # 3

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

Question # 4

The velocity of sound at same temperature is maximum in

Question # 5

If F=0.04 N and X=4 cm then K=

Question # 6

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 # 7

The principle of superposition states that

Question # 8

Acceleration of the mass at any instant is given by

Question # 9

A weakly damped system has fairly

Question # 10

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

Question # 11

Which one of the following elasticizes is possessed by fluids:

Question # 12

The wave motion set up in any medium depends upon:

Question # 13

The vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called

Question # 14

The force which opposes the applied force producing the displacement in the spring is called

Question # 15

Ultra-violet rays differ from X-rays in that they

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:
A. Longitudinal wave
B. Transverse wave
C. No vibration at all
D. None of them
2 Sound waves in air always
A. Longitudinal
B. Transverse
C. Stationary
D. Electromagnetic
3 Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?
A. 100 ms-1
B. 200 ms-1
C. 450 ms-1
D. 900 ms-1
4 The expression of Hook's law is
A. F=ma
B. F=kx
C. F= -kx
D. -kx=ma
5 When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:
A. Longitudinal waves
B. Transverse waves
C. Water waves
D. Complex waves
6 The damping depends upon the
A. amplitude
B. sharpness
C. both of them
D. none of them
7 The velocity of sound is greatest in
A. Water
B. Air
C. Vacuum
D. Metal
8 The process in which energy is dissipated from the oscillating system is known as
A. resonance
B. interference
C. diffraction
D. damping
9 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
10 A simple pendulum consists of a
A. small light bob
B. small heavy bob
C. big light bob
D. big heavy bob

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