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 not mechanical wave?

Question # 2

When an oscillatory motion repeats itself, then this type of motion is called

Question # 3

Which one of the following elasticizes is possessed by fluids:

Question # 4

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

Question # 5

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

Question # 6

Si units of time period is

Question # 7

In stationary waves

Question # 8

Two sources of sound are said to be coherent if

Question # 9

While describing the motion of a simple pendulum, the frictional effects are

Question # 10

Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:

Question # 11

Wave disturbances may also come in a concentrated bundle, like shock wave from an aeroplane flying at

Question # 12

Fidelity refers to

Question # 13

At 'resonance' the transfer of energy from deriving source to the oscillator is

Question # 14

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

Question # 15

Longitudinal waves are also called:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 To hear a clear echo, the reflecting surface must be at a minimum distance of
A. 10 m
B. 16.5 m
C. 33 m
D. 66 m
2 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
3 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
4 The waves which propagate through the oscillations of material particles are known as:
A. Mechanical waves
B. Electromagnetic waves
C. Any of them
D. None of them
5 The instantaneous velocity of a body moving along a circle is directed
A. along the radius
B. along the tangent
C. away from the circle
D. none of them
6 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
7 In the formula for finding the speed of waves in the spring, unit of m in SIn units is:
A. kg
B. kg-meter
C. kg/meter
D. Meter/kg
8 If the time period a simple pendulum is 2 s, its frequency would be
A. 2 Hz
B. 1.5 Hz
C. 1.0 Hz
D. 0.5 Hz
9 With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are
A. Energy, momentum and mass
B. Energy
C. Energy and mass
D. Energy and linear momentum
10 When a mass 'm' is pulled slowly through a distance 'xo' , the elastic potential energy of the spring would be
A. P.E=Kx2o
B. P.E= 1/2kxo
C. P.E=1/2Kx2o
D. P.E=Kx2o

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