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

Through which character we can distinguish the light waves from sound waves

Question # 2

If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be

Question # 3

In the same medium, velocity of the wave:

Question # 4

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

Question # 5

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

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

Which one of the following wave motions is transverse:

Question # 8

Crests and troughs are formed in:

Question # 9

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

Question # 10

Which one of the following elasticizes is possessed by fluids:

Question # 11

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 # 12

In compressional wave,the layer of medium having reduced pressure is called:

Question # 13

When temperature increase, the frequency of a tuning fork

Question # 14

A second's pendulum is a pendulum whose time period is

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Fluids can transmit:
A. Transverse wave
B. Compressional wave
C. Both of them
D. None of them
2 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
3 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
4 Acceleration of the mass at any instant is given by
A. a=k/m x
B. a= - m/k x
C. a = - k/m x
D. a=m/k x
5 Decibel is unit of
A. Intensity of light
B. x-ray radiation capacity
C. sound loudness
D. Energy of radiation
6 Fidelity refers to
A. Reproduction of original sound
B. Reproduction of original image
C. Reproduction of music
D. Reproduction of a CD from original copy
7 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
8 Which one of the following wave motions is transverse:
A. Wave motion produced in water when a piece of stone is thrown into it
B. Pulling of weight hanging vertically with a spiral spring
C. Both of these
D. None of these
9 In case of mechanical waves, we study the motion of
A. a single particle
B. collection of particle
C. any one of them
D. none of them
10 Si units of time period is
A. second
B. hertz
C. revolution
D. vibration/sec

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