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

A weakly damped system has fairly

Question # 2

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

Question # 3

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

Question # 4

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 # 5

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

Question # 6

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

Question # 7

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is

Question # 8

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

Question # 9

There is no net transfer of energy by particle of medium in

Question # 10

The process in which energy is dissipated from the oscillating system is known as

Question # 11

The restoring force always directed towards the

Question # 12

The frequency of free vibrations is known as

Question # 13

Smaller the damping, greater will be the

Question # 14

Fluids can transmit:

Question # 15

A swing has

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The velocity of sound in air depends upon
A. Density and elasticity of gas
B. Pressure
C. Wavelength
D. Amplitude and frequency of sound
2 The speed of sound in a medium depends on
A. The elastic property but not on the inertia property
B. The inertia property but not on the elastic property
C. The elastic property as well as the inertia property
D. Neither the elastic property nor the inertia property
3 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
4 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
5 At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is
A. Sinusoidal shape with amplitude A/3
B. Sinusoidal shape with amplitude A/2
C. Sinusoidal shape with amplitude A
D. Straight line
6 Which of the following medium/media can transmit both transverse and longitudinal waves:
A. Solids
B. Liquids
C. Gases
D. All of them
7 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
8 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
9 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
10 When a wave is travels from one place to another, it transfers:
A. Matter
B. Energy
C. Momentum
D. Both B and C

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