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 time required to complete on vibration is called

Question # 2

If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be

Question # 3

Laplace formula is derived from

Question # 4

For a body executing S. H. M, its

Question # 5

The phase determines the

Question # 6

The wave form of S.H.M will be

Question # 7

Which type of wave can be set up in solids

Question # 8

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

Question # 9

The weight 'mg' of the bob is resolved into

Question # 10

In a resonance situation the amplitude of the motion may become extra ordinarily large, if

Question # 11

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

Question # 12

The waves produced in a microwave oven have wavelength.

Question # 13

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

Question # 14

SI unit of frequency is

Question # 15

Example of progressive wave is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Smaller the damping, greater will be the
A. frequency
B. wavelength
C. amplitude
D. none of them
2 For production of beats the two sources must have
A. Different frequencies and same amplitude
B. Different frequencies
C. Different frequencies, same amplitude and same phase
D. Different frequencies and same phase
3 The natural frequency of a pendulum which is vibrating freely, depends upon its
A. mass
B. length
C. material
D. all of them
4 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
5 Angular frequency 'w' is basically a characteristics of
A. linear motion
B. circular motion
C. both of them
D. none of them
6 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
7 Through which character we can distinguish the light waves from sound waves
A. Interference
B. Refraction
C. Polarization
D. Reflection
8 The time period of pendulums of different lengths would be
A. same
B. different
C. both of them
D. none of them
9 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
10 If a wave can be polarized, it must be
A. An electromagnetic wave
B. A longitudinal wave
C. A progressive wave
D. A transverse wave

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