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

When a mass 'm' is pulled slowly through a distance 'xo' , the elastic potential energy of the spring would be

Question # 2

The time required to complete on vibration is called

Question # 3

Which type of wave can be set up in solids

Question # 4

One complete round trip of the body about its mean position is called

Question # 5

In stationary waves

Question # 6

The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

Question # 7

Longitudinal waves are also called:

Question # 8

When a mass 'm' is pulled slowly, the spring stretches by an amount xo, then the work done will be

Question # 9

The waves which propagate out in space due to oscillation of electric and magnetic fields are known as

Question # 10

The total energy of spring mass system is

Question # 11

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

Question # 12

The bob of a simple pendulum is suspended by

Question # 13

The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:

Question # 14

A traveling wave has a shape 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 Si units of time period is
A. second
B. hertz
C. revolution
D. vibration/sec
2 Which waves are used in sonography?
A. Microwaves
B. Infra red waved
C. Sound waves
D. Ultrasonic waves
3 When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:
A. Longitudinal waves
B. Transverse waves
C. Water waves
D. Complex waves
4 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
5 The process in which energy is dissipated from the oscillating system is known as
A. resonance
B. interference
C. diffraction
D. damping
6 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
7 The damping depends upon the
A. amplitude
B. sharpness
C. both of them
D. none of them
8 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
9 Velocity of sound in vacuum (in m/s) is
A. 330
B. 1000
C. 156
D. 0
10 If the length of second pendulum becomes four times then its time period will become
A. Four time
B. Two times
C. Six times
D. Eight times

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