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 velocity of sound in air not effected by changes in

Question # 2

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

Question # 3

Which one of the following wave motions is transverse:

Question # 4

Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of

Question # 5

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

Question # 6

As the bob of the pendulum moves to and fro which of the force is experienced by the bob

Question # 7

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

Question # 8

Fluids can transmit:

Question # 9

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

Question # 10

The resonance will be sharp, if the amplitude decreases rapidly at a frequency

Question # 11

The maximum displacement of a body on either side of its equilibrium position is called

Question # 12

The time period of pendulums of different lengths would be

Question # 13

The waves in which the particles of the medium have displacement along the direction of propagation of waves are called

Question # 14

If the length of second pendulum becomes four times then its time period will become

Question # 15

In the same medium, velocity of the wave:

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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 The bob of a simple pendulum is suspended by
A. string
B. heavy inextensible string
C. light extensible string
D. light inextensible string
3 When an oscillatory motion repeats itself, then this type of motion is called
A. vibratory motion
B. constant motion
C. fixed motion
D. periodic motion
4 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
5 Example of progressive wave is
A. transverse waves
B. longitudinal waves
C. both of them
D. none of them
6 The characteristic of a body executing S.H.M is that its acceleration is
A. inversely proportional to displacement
B. directly proportional to displacement
C. independent of displacement
D. equal to zero
7 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
8 Which of the following is not mechanical wave?
A. Sound wave
B. Light wave
C.
wave produced in spring
D. None of them
9 Waves transport energy
A. without transport energy
B. with matter
C. both of them
D. none of them
10 In the same medium, velocity of the wave:
A. Goes on increasing
B. Remains constant
C. Goes on decreasing
D. None of these

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