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

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

Question # 2

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

Question # 3

Example of progressive wave is

Question # 4

The waves which propagate through the oscillations of material particles are known as:

Question # 5

Smaller the damping, greater will be the

Question # 6

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

Question # 7

Which waves are used in sonography?

Question # 8

Which of the following changes at an antinode in a stationary wave?

Question # 9

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

Question # 10

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

Question # 11

Decibel is unit of

Question # 12

For a body executing S. H. M, its

Question # 13

The waves produced in a microwave oven have frequency

Question # 14

Time period of a simple pendulum depends upon the

Question # 15

When two progressive waves of nearly same frequencies superimpose and give rise to beats, then

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Time period of a simple pendulum depends upon the
A. length of the pendulum
B. acceleration due to gravity
C. none of them
D. both of them
2 A heavily damped system has a fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
3 The waves which propagate through the oscillations of material particles are known as:
A. Mechanical waves
B. Electromagnetic waves
C. Any of them
D. None of them
4 If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:
A. Stationary waves
B. Transverse waves
C. Both of these
D. None of these
5 The example of mechanical wave is
A. waves in ropes
B. waves on water surface
C. waves in air
D. all of them
6 If a freely oscillating system is subjected to an external force, then
A. free vibrations will take place
B. the body will move with its natural frequency
C. forced vibrations will take place
D. none of them
7 A swing has
A. one natural frequency
B. two natural frequencies
C. three natural frequencies
D. four natural frequencies
8 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
9 The distance covered by the wave in one second is:
A. Wave number
B. Wave length
C. Frequency
D. Wave speed
10 Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as
A. waves
B. beat
C. interference
D. resonance

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