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

Which of the following is an example of a S.H.M?

Question # 2

SI unit of frequency is

Question # 3

The waves moving from a sitar to a listener in air are

Question # 4

In case of mechanical waves, we study the motion of

Question # 5

A body is executing free vibrations when it oscilates

Question # 6

If the mass of the simple pendulum becomes double, its time period

Question # 7

Two sources of sound are said to be coherent if

Question # 8

Which type of wave can be set up in solids

Question # 9

Fidelity refers to

Question # 10

When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:

Question # 11

The temperature at which the speed of sound becomes double as was at 27°C is

Question # 12

Fluids can transmit:

Question # 13

Smaller the damping, greater will be the

Question # 14

When the bob of simple pendulum is at mean position, its K.E will be

Question # 15

If F=0.04 N and X=4 cm then K=

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The distance covered by the wave in one second is:
A. Wave number
B. Wave length
C. Frequency
D. Wave speed
2 Which one of the following is an example of resonance
A. swing
B. tuning a radio
C. microwave oven
D. all of them
3 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave
4 Crests and troughs are formed in:
A. Longitudinal waves
B. Transverse waves
C. Both of these
D. None of these
5 A body is executing free vibrations when it oscilates
A. with the interference of an external force
B. without the interference of an external force
C. with the interference of an internal force
D. none of them
6 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
7 Of the following, the option ______ reminds of longitudinal waves.
A. Sound waves
B. Heat waves
C. Electromagnetic waves
D. Light waves
8 SI unit of wave length is:
A. Kilometer
B. Metre
C. Centimetre
D. Hertz
9 The velocity of sound in air not effected by changes in
A. Moisture contents in air
B. Temperature of air
C. The atmosphere pressure
D. The composition of air
10 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?
A. 103
B. 106
C. 109
D. 1012

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