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 F=0.04 N and X=4 cm then K=

Question # 2

Sound waves in air always

Question # 3

Crests and troughs are formed in:

Question # 4

When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:

Question # 5

Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as

Question # 6

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

Question # 7

The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:

Question # 8

Which of the following changes at an antinode in a stationary wave?

Question # 9

Which of the following does not exhibit S.H.M?

Question # 10

When a mass 'm' is pulled slowly through a distance 'xo' , the elastic potential energy of the spring would be

Question # 11

When sound waves travel from air to water which of these remains constant?

Question # 12

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

Question # 13

When a mass 'm' is pulled slowly, the spring stretches by an amount xo, then the work done will be

Question # 14

Longitudinal waves are also called:

Question # 15

Time period of a simple pendulum depends upon the

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The weight 'mg' of the bob is resolved into
A. one component
B. two components
C. three components
D. four components
2 In stationary waves
A. Energy is uniformly distributed
B. Energy is minimum at nodes and maximum at antinodes
C. Energy is maximum at nodes and minimum at antidotes
D. Alternating maximum and minimum energy producing at nodes and antinodes
3 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
4 Smaller the damping, greater will be the
A. frequency
B. wavelength
C. amplitude
D. none of them
5 Through which character we can distinguish the light waves from sound waves
A. Interference
B. Refraction
C. Polarization
D. Reflection
6 Sound waves in air always
A. Longitudinal
B. Transverse
C. Stationary
D. Electromagnetic
7 Crests and troughs are formed in:
A. Longitudinal waves
B. Transverse waves
C. Both of these
D. None of these
8 The maximum displacement of a body on either side of its equilibrium position is called
A. frequency
B. amplitude
C. displacement
D. time period
9 Which one of the following could be the frequency of ultraviolet radiation?
A. 1.0 x 106Hz
B. 1.0 x 109Hz
C. 1.0 x 1012Hz
D. 1.0 x 1015Hz
10 Smaller the damping, the resonance will be
A. more flat
B. more sharp
C. both of them
D. none of them

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