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 expression of Hook's law is

Question # 2

The damping depends upon the

Question # 3

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

Question # 4

Transverse waves can be set up:

Question # 5

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

Question # 6

Which one of the following wave motions is transverse:

Question # 7

Shock absorber of the car is an example of

Question # 8

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

Question # 9

transverse wave motion is possible in:

Question # 10

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

Question # 11

Mechanical waves on the surface of a liquid are

Question # 12

If the time period a simple pendulum is 2 s, its frequency would be

Question # 13

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

Question # 14

The loudness and pitch of a sound note depends on

Question # 15

Which of the following is not mechanical wave?

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called
A. rotatory motion
B. motion under gravity
C. angular motion
D. simple harmonic motion
2 When the bob of simple pendulum is at extreme position, its K.E. will be
A. maximum
B. minimum
C. zero
D. all of them
3 If the length of a simple pendulum is 0.25 m its time period would be
A. 1.0 s
B. 2.0 s
C. 3.0 s
D. 4.0 s
4 The distance covered by the wave in one second is:
A. Wave number
B. Wave length
C. Frequency
D. Wave speed
5 SI unit of frequency is
A. second
B. hertz
C. revolution
D. vibrations/sec
6 Decibel is unit of
A. Intensity of light
B. x-ray radiation capacity
C. sound loudness
D. Energy of radiation
7 The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be
A. 1 : 2
B. 4 : 1
C. 1 : 4
D. 2 : 1
8 A heavily damped system has a fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
9 The velocity of sound at same temperature is maximum in
A. H2
B. N2
C. O2
D. NH3
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:
A. Longitudinal waves
B. Transverse waves
C. Water waves
D. Complex waves

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