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

The damping depends upon the

Question # 2

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

Question # 3

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

Question # 4

The total energy of spring mass system is

Question # 5

The natural frequency of a pendulum which is vibrating freely, depends upon its

Question # 6

The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

Question # 7

When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be

Question # 8

Time period of a simple pendulum depends upon the

Question # 9

Which of the following does not exhibit S.H.M?

Question # 10

If a simple pendulum is shifted from karachi to K-2 cliff, its time period

Question # 11

SI unit of wave length is:

Question # 12

Which type of wave can be set up in solids

Question # 13

At 'resonance' the transfer of energy from deriving source to the oscillator is

Question # 14

When sound waves travel from air to water which of these remains constant?

Question # 15

The example of mechanical wave is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The frequency of free vibrations is known as
A. free frequency
B. forced frequency
C. natural frequency
D. un-natural frequency
2 The waves in which the particles of the medium have displacement along the direction of propagation of waves are called
A. longitudinal waves
B. transverse waves
C. non-mechanical waves
D. none of them
3 The process in which energy is dissipated from the oscillating system is known as
A. resonance
B. interference
C. diffraction
D. damping
4 Fidelity refers to
A. Reproduction of original sound
B. Reproduction of original image
C. Reproduction of music
D. Reproduction of a CD from original copy
5 A simple pendulum consists of a
A. small light bob
B. small heavy bob
C. big light bob
D. big heavy bob
6 The expression for restoring force is
A. F=ma
B. F=kx
C. F= -kx
D. Kx=ma
7 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
8 Energy is not carried by
A. Transverse progressive waves
B. Longitudinal vibration
C. Stationary waves
D. Electromagnetic
9 When a mass 'm' is pulled slowly through a distance 'xo' , the elastic potential energy of the spring would be
A. P.E=Kx2o
B. P.E= 1/2kxo
C. P.E=1/2Kx2o
D. P.E=Kx2o
10 An object undergoes S.H.M has maximum speed when its displacement from the mean position is
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value

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