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

Shock absorber of the car is an example of

Question # 2

Smaller the damping, the resonance will be

Question # 3

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

Question # 4

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

Question # 5

Transverse waves can be set up:

Question # 6

Crests and troughs are formed in:

Question # 7

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

Question # 8

Example of progressive wave is

Question # 9

The expression for restoring force is

Question # 10

Time period of simple pendulum is independent of

Question # 11

Smaller the damping, greater will be the

Question # 12

If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:

Question # 13

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

Question # 14

The instantaneous velocity of a body moving along a circle is directed

Question # 15

The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The example of mechanical wave is
A. waves in ropes
B. waves on water surface
C. waves in air
D. all of them
2 The wave motion set up in any medium depends upon:
A. Elasticity
B. Inertia
C. Density
D. All of these
3 The velocity of sound in air not effected by changes in
A. Moisture contents in air
B. Temperature of air
C. The atmosphere pressure
D. The composition of air
4 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
5 The temperature at which the speed of sound becomes double as was at 27°C is
A. 273°C
B. 0°C
C. 927°C
D. 1027°C
6 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
7 Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:
A. Rope
B. Coil of spring
C. Water
D. All of them
8 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
9 In solids, only following type/s of wave can travel:
A. Transverse
B. Longitudinal
C. Both A and B
D. None of them
10 Example of vibratory motion is
A. mass suspended from a spring
B. a bob of simple pendulum
C. mass attached to a spring placed
D. all of them

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