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 total energy of spring mass system is

Question # 2

A swing has

Question # 3

The principle of superposition states that

Question # 4

Fluids can transmit:

Question # 5

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

Question # 6

Transverse waves can be set up:

Question # 7

For a body executing S. H. M, its

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

Question # 12

Velocity of sound in vacuum (in m/s) is

Question # 13

Which one of the following elasticizes is possessed by fluids:

Question # 14

The vibrations of factory floor caused by the running of heavy machinery is an example of

Question # 15

When the bob of simple pendulum is at extreme position, its K.E. will be

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 It is possible to recognize a person by hearing his voice even if he is hidden behind a solid wall. This is due to the fact that his voice
A. Has a definite pitch
B. Has a definite quality
C. Has a definite capacity
D. Can penetrate the wall
2 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
3 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
4 Angular frequency 'w' is basically a characteristics of
A. linear motion
B. circular motion
C. both of them
D. none of them
5 As the bob of the pendulum moves to and fro which of the force is experienced by the bob
A. its weight
B. tension in the string
C. viscous drag force by air
D. all of them
6 A weakly damped system has fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
7 When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be
A. F= Kx0
B. F=1/2Kx0
C. F=2Kx0
D. F=4Kx0
8 For production of beats the two sources must have
A. Different frequencies and same amplitude
B. Different frequencies
C. Different frequencies, same amplitude and same phase
D. Different frequencies and same phase
9 The waves produced in a microwave oven have frequency
A. 2450 Hz
B. 2450 K Hz
C. 2450 M Hz
D. 2450 G Hz
10 If we increase the length of a simple pendulum four times, its time period will become
A. 2 times
B. 3 times
C. 4 times
D. 6 times

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