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

It two waves of amplitude 'a' produce a resultant wave of amplitude a, then the phase difference between them will be

Question # 2

If the length of second pendulum becomes four times then its time period will become

Question # 3

When a mass 'm' is pulled slowly through a distance 'xo' , the elastic potential energy of the spring would be

Question # 4

Which waves are used in sonography?

Question # 5

For production of beats the two sources must have

Question # 6

The wave form of S.H.M will be

Question # 7

A traveling wave has a shape of:

Question # 8

Which of the following is the longitudinal waves?

Question # 9

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

Question # 10

Example of progressive wave is

Question # 11

Smaller the damping, greater will be the

Question # 12

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

Question # 13

The speed of sound in a medium depends on

Question # 14

The velocity of sound at same temperature is maximum in

Question # 15

An object undergoes S.H.M has maximum acceleration when its displacement form the means position

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Transverse waves can be set up:
A. Solids
B. Liquids
C. Gases
D. All of them
2 Example of progressive wave is
A. transverse waves
B. longitudinal waves
C. both of them
D. none of them
3 Which one is not produced by sound waves in air?
A. Polarization
B. Diffraction
C. Refraction
D. Reflection
4 Which one of the following elasticizes is possessed by fluids:
A. Young's elastic modulus (length)
B. Bulk elastic modulus (volume)
C. Modulus of rigidity (shape)
D. None of these
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 natural frequency of a pendulum which is vibrating freely, depends upon its
A. mass
B. length
C. material
D. all of them
7 The weight 'mg' of the bob is resolved into
A. one component
B. two components
C. three components
D. four components
8 The resonance will be sharp, if the amplitude decreases rapidly at a frequency
A. equal to the resonant frequency
B. slight different from the resonant frequency
C. greatly different from the resonant frequency
D. any one of them
9 An object undergoes S.H.M has maximum speed when its displacement from the mean position is
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value
10 While describing the motion of a simple pendulum, the frictional effects are
A. taken into account
B. completely ignored
C. partially ignored
D. none of them

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