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

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

Question # 2

In case of mechanical waves, we study the motion of

Question # 3

The square of 0.4 is:

Question # 4

Mechanical waves on the surface of a liquid are

Question # 5

Two sources of sound are said to be coherent if

Question # 6

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

Question # 7

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

Question # 8

Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of

Question # 9

Acceleration of the mass at any instant is given by

Question # 10

In the production of beats by 2 waves of same amplitude and nearly same frequency, the maximum intensity to each of the constituent waves is

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

Si units of time period is

Question # 13

The waves produced in a microwave oven have wavelength.

Question # 14

Which of the following does not exhibit S.H.M?

Question # 15

An object undergoes S.H.M has maximum acceleration when its displacement form the means position

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Of the following, the option ______ reminds of longitudinal waves.
A. Sound waves
B. Heat waves
C. Electromagnetic waves
D. Light waves
2 If we increase the length of a simple pendulum four times, its time period will become
A. 2 times
B. 3 times
C. 4 times
D. 6 times
3 In transverse waves, the individual particles of the medium move:
A. In circles
B. Perpendicular to the direction of level
C. Parallel to the direction of level
D. None of these
4 Decibel is unit of
A. Intensity of light
B. x-ray radiation capacity
C. sound loudness
D. Energy of radiation
5 Transverse waves can be set up:
A. Solids
B. Liquids
C. Gases
D. All of them
6 When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be
A. F= Kx0
B. F=1/2Kx0
C. F=2Kx0
D. F=4Kx0
7 transverse wave motion is possible in:
A. Air
B. A mixture of NH3and O2
C. Strings
D. All of these
8 The waves in which the particles of the medium have displacement along the direction of propagation of waves are called
A. longitudinal waves
B. transverse waves
C. non-mechanical waves
D. none of them
9 The waves which propagate by the collision of material particles are known as
A. e.m. waves
B. mechanical waves
C. light waves
D. microwaves
10 Sound waves in air always
A. Longitudinal
B. Transverse
C. Stationary
D. Electromagnetic

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