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 transverse waves, the individual particles of the medium move:

Question # 2

When a body moves to and fro motion, this type of motion is called

Question # 3

Smaller the damping, greater will be the

Question # 4

Two sources of sound are said to be coherent if

Question # 5

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

Question # 6

The wave motion set up in any medium depends upon:

Question # 7

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

Question # 8

The damping depends upon the

Question # 9

Mechanical waves on the surface of a liquid are

Question # 10

A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is

Question # 11

Which type of wave can be set up in solids

Question # 12

If the length of a simple pendulum is 0.25 m its time period would be

Question # 13

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

Question # 14

The vibrations of factory floor caused by the running of heavy machinery is an example of

Question # 15

When sound waves travel from air to water which of these remains constant?

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 When a mass 'm' is pulled slowly, the spring stretches by an amount xo, then the work done will be
A. W=Kxo
B. W=1/2Kxo
C. W=1/2Kx2o
D. W=4Kxo
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 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 The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be
A. 1 : 2
B. 4 : 1
C. 1 : 4
D. 2 : 1
5 In the resonance condition, the amplitude of the oscillator becomes
A. very large
B. very small
C. zero
D. any one of them
6 Through which character we can distinguish the light waves from sound waves
A. Interference
B. Refraction
C. Polarization
D. Reflection
7 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
8 The velocity of sound in air depends upon
A. Density and elasticity of gas
B. Pressure
C. Wavelength
D. Amplitude and frequency of sound
9 The damping depends upon the
A. amplitude
B. sharpness
C. both of them
D. none of them
10 In a resonance situation the amplitude of the motion may become extra ordinarily large, if
A. the driving force is large
B. the driving force is zero
C. the driving force may be feeble
D. all of them

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