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

In the same medium, velocity of the wave:

Question # 2

Acceleration of the mass at any instant is given by

Question # 3

The velocity of sound in air not effected by changes in

Question # 4

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

Question # 5

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

Question # 6

A heavily damped system has a fairly

Question # 7

When an oscillatory motion repeats itself, then this type of motion is called

Question # 8

The time period of pendulums of different lengths would be

Question # 9

The characteristic of a body executing S.H.M is that its acceleration is

Question # 10

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

Question # 11

A weakly damped system has fairly

Question # 12

When two waves with same frequency and constant phase difference phase difference interfere

Question # 13

In case of mechanical waves, we study the motion of

Question # 14

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

Question # 15

The restoring force always directed towards the

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The waves in which the particles of the medium have displacement along the direction of propagation of waves are called
A. longitudinal waves
B. transverse waves
C. non-mechanical waves
D. none of them
2 Which one of the following could be the frequency of ultraviolet radiation?
A. 1.0 x 106Hz
B. 1.0 x 109Hz
C. 1.0 x 1012Hz
D. 1.0 x 1015Hz
3 Which type of wave can be set up in solids
A. longitudinal waves
B. transverse waves
C. both of them
D. none of them
4 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
5 At 'resonance' the transfer of energy from deriving source to the oscillator is
A. maximum
B. minimum
C. zero
D. none of them
6 The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as
A. longitudinal waves
B. transverse waves
C. non-mechanical waves
D. none of them
7 transverse wave motion is possible in:
A. Air
B. A mixture of NH3and O2
C. Strings
D. All of these
8 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
9 An object undergoes S.H.M has maximum acceleration when its displacement form the means position
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value
10 Time period of simple pendulum is independent of
A. length
B. mass
C. acceleration due to gravity
D. none of them

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