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

In a resonance situation the amplitude of the motion may become extra ordinarily large, if

Question # 2

A wave, which transfer energy by moving away from the source of disturbance is called a

Question # 3

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

Question # 4

The velocity of sound in air not effected by changes in

Question # 5

Transverse waves can be set up:

Question # 6

If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get

Question # 7

In the formula for finding the speed of waves in the spring, unit of m in SIn units is:

Question # 8

When a wave is travels from one place to another, it transfers:

Question # 9

Mechanical waves on the surface of a liquid are

Question # 10

In case of mechanical waves, we study the motion of

Question # 11

The velocity of sound is greatest in

Question # 12

If a freely oscillating system is subjected to an external force, then

Question # 13

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

Question # 14

Which of the following is not mechanical wave?

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 In solids, only following type/s of wave can travel:
A. Transverse
B. Longitudinal
C. Both A and B
D. None of them
2 When two progressive waves of nearly same frequencies superimpose and give rise to beats, then
A. Frequency of beat changes with time
B. Frequency of beat changes with location of observer
C. All particles of medium vibrate simple harmonically with frequency equal to the difference between frequencies of component waves
D. Amplitude of vibration of particles at any point changes simple harmonically with frequency equal to difference between two component waves
3 The expression for restoring force is
A. F=ma
B. F=kx
C. F= -kx
D. Kx=ma
4 The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as
A. longitudinal waves
B. transverse waves
C. non-mechanical waves
D. none of them
5 Smaller the damping, greater will be the
A. frequency
B. wavelength
C. amplitude
D. none of them
6 The loudness and pitch of a sound note depends on
A. Intensity and velocity
B. Frequency and velocity
C. Intensity and frequency
D. Frequency and number of harmonic
7 A wave, which transfer energy by moving away from the source of disturbance is called a
A. progressive wave
B. travelling wave
C. both of them
D. none of them
8 When a body is performing S.H.M., its acceleration is
A. inversely proportional to the displacement
B. directly proportional to the applied force
C. directly proportional to the amplitude
D. directly proportional to the displacement but in opposite direction
9 When an oscillatory motion repeats itself, then this type of motion is called
A. vibratory motion
B. constant motion
C. fixed motion
D. periodic motion
10 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

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