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 wavelength.

Question # 2

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

Question # 3

Time period of simple pendulum is independent of

Question # 4

Crests and troughs are formed in:

Question # 5

For transmission of both transverse and longitudinal waves, we can use:

Question # 6

The natural frequency of a pendulum which is vibrating freely, depends upon its

Question # 7

Waves transport energy

Question # 8

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

Question # 9

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

Question # 10

If a wave can be polarized, it must be

Question # 11

Which type of wave can be set up in solids

Question # 12

The speed of sound in a medium depends on

Question # 13

With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are

Question # 14

Sound waves in air always

Question # 15

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 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
2 Data transmitted along glass-fiber cables is in the form of pulses of monochromatic red light each of duration 2.5 ns. Which of the following is the best estimate of the number of wavelength in each pulse?
A. 103
B. 106
C. 109
D. 1012
3 Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as
A. waves
B. beat
C. interference
D. resonance
4 Through which character we can distinguish the light waves from sound waves
A. Interference
B. Refraction
C. Polarization
D. Reflection
5 While describing the motion of a simple pendulum, the frictional effects are
A. taken into account
B. completely ignored
C. partially ignored
D. none of them
6 At 'resonance' the transfer of energy from deriving source to the oscillator is
A. maximum
B. minimum
C. zero
D. none of them
7 The waves which propagate through the oscillations of material particles are known as:
A. Mechanical waves
B. Electromagnetic waves
C. Any of them
D. None of them
8 For transmission of both transverse and longitudinal waves, we can use:
A. Solid
B. Gas
C. Plasma
D. None of these
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 The example of mechanical wave is
A. waves in ropes
B. waves on water surface
C. waves in air
D. all of them

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