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

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

Question # 2

The velocity of sound in air not effected by changes in

Question # 3

Example of vibratory motion is

Question # 4

Which one of the following elasticizes is possessed by fluids:

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

The velocity of sound in air depends upon

Question # 9

Mechanical waves on the surface of a liquid are

Question # 10

A weakly damped system has fairly

Question # 11

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

Question # 12

Laplace formula is derived from

Question # 13

In stationary waves

Question # 14

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

Question # 15

The waves moving from a sitar to a listener in air are

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 When temperature increase, the frequency of a tuning fork
A. Increases
B. Decreases
C. Remains same
D. Increase or decreases depending on the material
2 At 'resonance' the transfer of energy from deriving source to the oscillator is
A. maximum
B. minimum
C. zero
D. none of them
3 Which type of wave can be set up in solids
A. longitudinal waves
B. transverse waves
C. both of them
D. none of them
4 Laplace formula is derived from
A. Isothermal change
B. Adiabatic change
C. Isobaric change
D. None of these
5 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
6 The damping depends upon the
A. amplitude
B. sharpness
C. both of them
D. none of them
7 Smaller the damping, the resonance will be
A. more flat
B. more sharp
C. both of them
D. none of them
8 Which of the following medium/media can transmit both transverse and longitudinal waves:
A. Solids
B. Liquids
C. Gases
D. All of them
9 Which one is not produced by sound waves in air?
A. Polarization
B. Diffraction
C. Refraction
D. Reflection
10 Smaller the damping, greater will be the
A. frequency
B. wavelength
C. amplitude
D. none of them

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