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

A weakly damped system has fairly

Question # 2

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

Question # 3

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

Question # 4

Fluids can transmit:

Question # 5

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 # 6

The velocity of sound in air not effected by changes in

Question # 7

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

Question # 8

Smaller the damping, greater will be the

Question # 9

Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

Question # 10

The process in which energy is dissipated from the oscillating system is known as

Question # 11

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

Question # 12

Smaller the damping, the resonance will be

Question # 13

SI unit of wave length is:

Question # 14

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

Question # 15

The force which opposes the applied force producing the displacement in the spring is called

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Which of the following is not mechanical wave?
A. Sound wave
B. Light wave
C.
wave produced in spring
D. None of them
2 The vibratory or oscillatory motion of a body is
A. translatory motion
B. back and forth motion about its mean position
C. free all motion
D. circular motion
3 Two sources of sound are said to be coherent if
A. The produce sounds of equal intensity
B. They produce sounds of equal frequency
C. They produce sound waves vibrating with the same phase
D. They produce sound waves with zero or constant phase difference all instant of time
4 SI unit of wave length is:
A. Kilometer
B. Metre
C. Centimetre
D. Hertz
5 The distance covered by the wave in one second is:
A. Wave number
B. Wave length
C. Frequency
D. Wave speed
6 The square of 0.4 is:
A. Greater than 0.4
B. Smaller than 0.4
C. Equal to 0.4
D. None of them
7 The total energy of spring mass system is
A. zero
B. changing with time
C. constant
D. none of them
8 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
9 Fluids can transmit:
A. Transverse wave
B. Compressional wave
C. Both of them
D. None of them
10 Which one is not produced by sound waves in air?
A. Polarization
B. Diffraction
C. Refraction
D. Reflection

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