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 phase determines the

Question # 2

In stationary waves

Question # 3

When temperature increase, the frequency of a tuning fork

Question # 4

Two sources of sound are said to be coherent if

Question # 5

Angular frequency 'w' is basically a characteristics of

Question # 6

When a mass 'm' is pulled slowly, the spring stretches by an amount xo, then the work done will be

Question # 7

The time period of pendulums of different lengths would be

Question # 8

A swing has

Question # 9

When a mass 'm' is pulled slowly through a distance 'xo' , the elastic potential energy of the spring would be

Question # 10

In the same medium, velocity of the wave:

Question # 11

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

Question # 12

The vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called

Question # 13

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 # 14

Ultra-violet rays differ from X-rays in that they

Question # 15

The waves which propagate out in space due to oscillation of electric and magnetic fields are known as

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 At 'resonance' the transfer of energy from deriving source to the oscillator is
A. maximum
B. minimum
C. zero
D. none of them
2 A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:
A. Longitudinal wave
B. Transverse wave
C. No vibration at all
D. None of them
3 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°
4 The process in which energy is dissipated from the oscillating system is known as
A. resonance
B. interference
C. diffraction
D. damping
5 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
6 A body is executing free vibrations when it oscilates
A. with the interference of an external force
B. without the interference of an external force
C. with the interference of an internal force
D. none of them
7 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
8 Two sound waves of slightly different frequencies propagating in the same direction produce beats due to
A. Interference
B. Diffraction
C. Polarization
D. Refraction
9 Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as
A. waves
B. beat
C. interference
D. resonance
10 The wave motion set up in any medium depends upon:
A. Elasticity
B. Inertia
C. Density
D. All of these

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