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

Question # 2

The waves moving from a sitar to a listener in air are

Question # 3

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

Question # 4

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

Question # 5

If the time period a simple pendulum is 2 s, its frequency would be

Question # 6

The waves which propagate through the oscillations of material particles are known as:

Question # 7

Sound waves in air always

Question # 8

The frequency of free vibrations is known as

Question # 9

Transverse waves can be set up:

Question # 10

Velocity of sound in a diatomic as is 300 m/sec. what is its rms velocity?

Question # 11

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

Question # 12

Time period of simple pendulum is independent of

Question # 13

Which one of the following elasticizes is possessed by fluids:

Question # 14

The damping depends upon the

Question # 15

The waves produced in a microwave oven have frequency

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
2 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
3 transverse wave motion is possible in:
A. Air
B. A mixture of NH3and O2
C. Strings
D. All of these
4 If a freely oscillating system is subjected to an external force, then
A. free vibrations will take place
B. the body will move with its natural frequency
C. forced vibrations will take place
D. none of them
5 The waves moving from a sitar to a listener in air are
A. Longitudinal progressive
B. Longitudinal stationary
C. Transverse progressive
D. Transverse stationary
6 It two waves of amplitude 'a' produce a resultant wave of amplitude a, then the phase difference between them will be
A. 60°
B. 90°
C. 120°
D. 180°
7 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
8 When sound waves travel from air to water which of these remains constant?
A. Velocity
B. Frequency
C. Wavelength
D. All the above
9 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
10 For a body executing S. H. M, its
A. momentum remains constant
B. potential energy remains constant
C. kinetic energy remains constant
D. total energy remains constant

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