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

Energy is not carried by

Question # 2

Which one of the following is an example of resonance

Question # 3

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

Question # 4

Resonance occurs when one of the natural frequencies of vibration of the forced or driven harmonic oscillator

Question # 5

The characteristic of a body executing S.H.M is that its acceleration is

Question # 6

Which one of the following could be the frequency of ultraviolet radiation?

Question # 7

The waves in which the particles of the medium have displacement along the direction of propagation of waves are called

Question # 8

The damping depends upon the

Question # 9

The temperature at which the speed of sound becomes double as was at 27°C is

Question # 10

The total energy of spring mass system is

Question # 11

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

Question # 12

In stationary waves

Question # 13

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

Question # 14

Time period of simple pendulum is independent of

Question # 15

The weight 'mg' of the bob is resolved into

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 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
2 One complete round trip of the body about its mean position is called
A. displacement
B. vibration
C. a complete motion
D. an acceleration
3 In the resonance condition, the amplitude of the oscillator becomes
A. very large
B. very small
C. zero
D. any one of them
4 Mechanical waves on the surface of a liquid are
A. Transverse
B. Longitudinal
C. Torsional
D. both transverse and longitudinal
5 The natural frequency of a pendulum which is vibrating freely, depends upon its
A. mass
B. length
C. material
D. all of them
6 When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be
A. 45°
B. 90°
C. 135°
D. 180°
7 A second's pendulum is a pendulum whose time period is
A. 1 second
B. 2 seconds
C. 3 seconds
D. 4 seconds
8 A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is
A. 2 m
B. 1 m
C. 0.5 m
D. 4 m
9 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
10 In transverse waves, the individual particles of the medium move:
A. In circles
B. Perpendicular to the direction of level
C. Parallel to the direction of level
D. None of these

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