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

Which waves are used in sonography?

Question # 2

The waves in which the particles of the medium have displacement along the direction of propagation of waves are called

Question # 3

In the same medium, velocity of the wave:

Question # 4

In case of mechanical waves, we study the motion of

Question # 5

Data transmitted along glass-fiber cables is in the form of pulses of monochromatic red light each of duration 2.5 ns. Which of the following is the best estimate of the number of wavelength in each pulse?

Question # 6

In solids, only following type/s of wave can travel:

Question # 7

In transverse waves, the individual particles of the medium move:

Question # 8

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

Question # 9

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

Question # 10

Decibel is unit of

Question # 11

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

Question # 12

When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to

Question # 13

The speed of sound in a medium depends on

Question # 14

The waves which propagate by the collision of material particles are known as

Question # 15

A weakly damped system has fairly

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Which of the following does not exhibit S.H.M?
A. a plucked violin string
B. a mass attached to a spring
C. a train shunting between two terminals
D. a simple pendulum
2 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave
3 Mechanical waves on the surface of a liquid are
A. Transverse
B. Longitudinal
C. Torsional
D. both transverse and longitudinal
4 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
5 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
6 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
7 The damping depends upon the
A. amplitude
B. sharpness
C. both of them
D. none of them
8 A swing has
A. one natural frequency
B. two natural frequencies
C. three natural frequencies
D. four natural frequencies
9 The expression of Hook's law is
A. F=ma
B. F=kx
C. F= -kx
D. -kx=ma
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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