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

Example of progressive wave is

Question # 2

Example of vibratory motion is

Question # 3

For transmission of both transverse and longitudinal waves, we can use:

Question # 4

The velocity of sound in air depends upon

Question # 5

For a body executing S. H. M, its

Question # 6

Which of the following is not mechanical wave?

Question # 7

The velocity of sound is greatest in

Question # 8

Sound waves in air always

Question # 9

Which one is not produced by sound waves in air?

Question # 10

If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be

Question # 11

Which one of the following could be the frequency of ultraviolet radiation?

Question # 12

Waves transport energy

Question # 13

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

Question # 14

Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of

Question # 15

Two sources of sound are said to be coherent if

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 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
A. rotatory motion
B. motion under gravity
C. angular motion
D. simple harmonic motion
2 The time period of pendulums of different lengths would be
A. same
B. different
C. both of them
D. none of them
3 In compressional wave,the layer of medium having reduced pressure is called:
A. Compression
B. Elasticity
C. Node
D. Rarefaction
4 At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is
A. Sinusoidal shape with amplitude A/3
B. Sinusoidal shape with amplitude A/2
C. Sinusoidal shape with amplitude A
D. Straight line
5 The force which opposes the applied force producing the displacement in the spring is called
A. restoring force
B. periodic force
C. centripetal force
D. resistive force
6 The vibratory or oscillatory motion of a body is
A. translatory motion
B. back and forth motion about its mean position
C. free all motion
D. circular motion
7 The damping depends upon the
A. amplitude
B. sharpness
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 A heavily damped system has a fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
10 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave

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