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 waves produced in a microwave oven have frequency

Question # 2

Such oscillations in which the amplitude decreases steadily with time, are called

Question # 3

Energy is not carried by

Question # 4

The characteristic of a body executing S.H.M is that its acceleration is

Question # 5

In stationary waves

Question # 6

The bob of a simple pendulum is suspended by

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

The force which opposes the applied force producing the displacement in the spring is called

Question # 12

When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to

Question # 13

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

Question # 14

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

Question # 15

If the length of a simple pendulum is 0.25 m its time period would be

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 A simple pendulum consists of a
A. small light bob
B. small heavy bob
C. big light bob
D. big heavy bob
2 The weight 'mg' of the bob is resolved into
A. one component
B. two components
C. three components
D. four components
3 At 'resonance' the transfer of energy from deriving source to the oscillator is
A. maximum
B. minimum
C. zero
D. none of them
4 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
5 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave
6 A swing has
A. one natural frequency
B. two natural frequencies
C. three natural frequencies
D. four natural frequencies
7 Fluids can transmit:
A. Transverse wave
B. Compressional wave
C. Both of them
D. None of them
8 The time required to complete on vibration is called
A. frequency
B. total time
C. time period
D. velocity
9 The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:
A. Mechanical waves
B. Electromagnetic waves
C. Matter waves
D. All of them
10 Laplace formula is derived from
A. Isothermal change
B. Adiabatic change
C. Isobaric change
D. None of these

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