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

Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as

Question # 2

Fidelity refers to

Question # 3

The portion of the water above its mean level forms a:

Question # 4

Resonance occurs when one of the natural frequencies of vibration of the forced or driven harmonic oscillator

Question # 5

The expression for restoring force is

Question # 6

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

Question # 7

Of the following, the option ______ reminds of longitudinal waves.

Question # 8

Decibel is unit of

Question # 9

With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are

Question # 10

Which of the following is an example of a S.H.M?

Question # 11

The square of 0.4 is:

Question # 12

When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be

Question # 13

To hear a clear echo, the reflecting surface must be at a minimum distance of

Question # 14

The distance covered by the wave during one period is called its:

Question # 15

Si units of time period is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 A weakly damped system has fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
2 The maximum displacement of a body on either side of its equilibrium position is called
A. frequency
B. amplitude
C. displacement
D. time period
3 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
4 The portion of the water above its mean level forms a:
A. Crest
B. Trough
C. Both A and B
D. None of these
5 Transverse waves can be set up:
A. Solids
B. Liquids
C. Gases
D. All of them
6 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?
A. 103
B. 106
C. 109
D. 1012
7 When temperature increase, the frequency of a tuning fork
A. Increases
B. Decreases
C. Remains same
D. Increase or decreases depending on the material
8 The characteristic of a body executing S.H.M is that its acceleration is
A. inversely proportional to displacement
B. directly proportional to displacement
C. independent of displacement
D. equal to zero
9 Mechanical waves on the surface of a liquid are
A. Transverse
B. Longitudinal
C. Torsional
D. both transverse and longitudinal
10 Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of
A. very small energy
B. very large energy
C. frictional forces
D. acceleration due to gravity

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