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 the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get

Question # 2

The wave form of S.H.M will be

Question # 3

If a wave can be polarized, it must be

Question # 4

Which waves are used in sonography?

Question # 5

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

Question # 6

In the resonance condition, the amplitude of the oscillator becomes

Question # 7

The waves produced in a microwave oven have wavelength.

Question # 8

A body is executing free vibrations when it oscilates

Question # 9

A physical system under going forced vibrations is known as

Question # 10

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

Question # 11

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?

Question # 12

The portion of the water above its mean level forms a:

Question # 13

Which type of wave can be set up in solids

Question # 14

In case of mechanical waves, we study the motion of

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Of the following, the option ______ reminds of longitudinal waves.
A. Sound waves
B. Heat waves
C. Electromagnetic waves
D. Light waves
2 If we increase the length of a simple pendulum four times, its time period will become
A. 2 times
B. 3 times
C. 4 times
D. 6 times
3 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
A. Has a definite pitch
B. Has a definite quality
C. Has a definite capacity
D. Can penetrate the wall
4 In solids, only following type/s of wave can travel:
A. Transverse
B. Longitudinal
C. Both A and B
D. None of them
5 The vibrations of factory floor caused by the running of heavy machinery is an example of
A. free vibration
B. natural vibrations
C. forced vibrations
D. all of them
6 Crests and troughs are formed in:
A. Longitudinal waves
B. Transverse waves
C. Both of these
D. None of these
7 Waves transport energy
A. without transport energy
B. with matter
C. both of them
D. none of them
8 The instantaneous velocity of a body moving along a circle is directed
A. along the radius
B. along the tangent
C. away from the circle
D. none of them
9 Which one of the following elasticizes is possessed by fluids:
A. Young's elastic modulus (length)
B. Bulk elastic modulus (volume)
C. Modulus of rigidity (shape)
D. None of these
10 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations

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