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

If a wave can be polarized, it must be

Question # 2

Si units of time period is

Question # 3

Smaller the damping, the resonance will be

Question # 4

The damping depends upon the

Question # 5

The waves produced in a microwave oven have frequency

Question # 6

For production of beats the two sources must have

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?

Question # 11

The wave motion set up in any medium depends upon:

Question # 12

Which one of the following elasticizes is possessed by fluids:

Question # 13

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

Question # 14

When a body is performing S.H.M., its acceleration is

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 Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?
A. 100 ms-1
B. 200 ms-1
C. 450 ms-1
D. 900 ms-1
2 The damping depends upon the
A. amplitude
B. sharpness
C. both of them
D. none of them
3 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
4 Decibel is unit of
A. Intensity of light
B. x-ray radiation capacity
C. sound loudness
D. Energy of radiation
5 The waves in which the particles of the medium have displacement along the direction of propagation of waves are called
A. longitudinal waves
B. transverse waves
C. non-mechanical waves
D. none of them
6 The weight 'mg' of the bob is resolved into
A. one component
B. two components
C. three components
D. four components
7 When the bob of simple pendulum is at mean position, its K.E will be
A. maximum
B. minimum
C. zero
D. all of them
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 Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of
A. very small energy
B. very large energy
C. frictional forces
D. acceleration due to gravity
10 Which one of the following is an example of resonance
A. swing
B. tuning a radio
C. microwave oven
D. all of them

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