ECAT Pre General Science Physics Chapter 8 Waves

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  • Chapter NameCh 8 - Waves

ECAT Pre General Science Physics Chapter 8 Waves

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ECAT Pre General Science Physics Chapter 8 Waves

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Question # 1

Shock absorber of the car is an example of

Question # 2

The damping depends upon the

Question # 3

When two waves with same frequency and constant phase difference phase difference interfere

Question # 4

The wave form of S.H.M will be

Question # 5

The instantaneous velocity of a body moving along a circle is directed

Question # 6

The vibratory or oscillatory motion of a body is

Question # 7

An object undergoes S.H.M has maximum speed when its displacement from the mean position is

Question # 8

The example of mechanical wave is

Question # 9

For transmission of both transverse and longitudinal waves, we can use:

Question # 10

Fluids can transmit:

Question # 11

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

Question # 12

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

Question # 13

The waves which propagate through the oscillations of material particles are known as:

Question # 14

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 # 15

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

Question # 16

The process in which energy is dissipated from the oscillating system is known as

Question # 17

Si units of time period is

Question # 18

Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

Question # 19

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

Question # 20

A body is executing free vibrations when it oscilates

Question # 21

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 # 22

Ultra-violet rays differ from X-rays in that they

Question # 23

Angular frequency 'w' is basically a characteristics of

Question # 24

The portion of the water above its mean level forms a:

Question # 25

If a wave can be polarized, it must be

Question # 26

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

Question # 27

Which type of wave can be set up in solids

Question # 28

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

Question # 29

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

Question # 30

Decibel is unit of

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