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

Example of progressive wave is

Question # 2

The total energy of spring mass system is

Question # 3

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

Question # 4

Which of the following changes at an antinode in a stationary wave?

Question # 5

Which type of wave can be set up in solids

Question # 6

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

Question # 7

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

Question # 8

Which of the following medium/media can transmit both transverse and longitudinal waves:

Question # 9

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

Question # 10

If we increase the length of a simple pendulum four times, its time period will become

Question # 11

A swing has

Question # 12

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

Question # 13

Which one of the following is an example of resonance

Question # 14

The weight 'mg' of the bob is resolved into

Question # 15

When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Which of the following changes at an antinode in a stationary wave?
A. Density only
B. Pressure only
C. Both pressure and density
D. Neither pressure nor density
2 As the bob of the pendulum moves to and fro which of the force is experienced by the bob
A. its weight
B. tension in the string
C. viscous drag force by air
D. all of them
3 An object undergoes S.H.M has maximum acceleration when its displacement form the means position
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value
4 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
5 Through which character we can distinguish the light waves from sound waves
A. Interference
B. Refraction
C. Polarization
D. Reflection
6 It is possible to recognize a person by hearing his voice even if he is hidden behind a solid wall. This is due to the fact that his voice
A. Has a definite pitch
B. Has a definite quality
C. Has a definite capacity
D. Can penetrate the wall
7 Acceleration of the mass at any instant is given by
A. a=k/m x
B. a= - m/k x
C. a = - k/m x
D. a=m/k x
8 Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:
A. Rope
B. Coil of spring
C. Water
D. All of them
9 When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be
A. F= Kx0
B. F=1/2Kx0
C. F=2Kx0
D. F=4Kx0
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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