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

Question # 2

The speed of sound in a medium depends on

Question # 3

Angular frequency 'w' is basically a characteristics of

Question # 4

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

Question # 5

Example of progressive wave is

Question # 6

Which type of wave can be set up in solids

Question # 7

Acceleration of the mass at any instant is given by

Question # 8

The portion of the water above its mean level forms a:

Question # 9

Fluids can transmit:

Question # 10

With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are

Question # 11

In the same medium, velocity of the wave:

Question # 12

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

Question # 13

Which of the following is not mechanical wave?

Question # 14

The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:

Question # 15

SI unit of frequency is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:
A. Rope
B. Coil of spring
C. Water
D. All of them
2 When a wave is travels from one place to another, it transfers:
A. Matter
B. Energy
C. Momentum
D. Both B and C
3 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
4 One complete round trip of the body about its mean position is called
A. displacement
B. vibration
C. a complete motion
D. an acceleration
5 In a resonance situation the amplitude of the motion may become extra ordinarily large, if
A. the driving force is large
B. the driving force is zero
C. the driving force may be feeble
D. all of them
6 If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get
A. diffraction
B. beat
C. interference
D. resonance
7 Which one is not produced by sound waves in air?
A. Polarization
B. Diffraction
C. Refraction
D. Reflection
8 Velocity of sound in vacuum (in m/s) is
A. 330
B. 1000
C. 156
D. 0
9 The time period of pendulums of different lengths would be
A. same
B. different
C. both of them
D. none of them
10 The vibrations of factory floor caused by the running of heavy machinery is an example of
A. free vibration
B. natural vibrations
C. forced vibrations
D. all of them

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