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

While describing the motion of a simple pendulum, the frictional effects are

Question # 2

The principle of superposition states that

Question # 3

Si units of time period is

Question # 4

Which of the following changes at an antinode in a stationary wave?

Question # 5

In transverse waves, the individual particles of the medium move:

Question # 6

The wave motion set up in any medium depends upon:

Question # 7

The loudness and pitch of a sound note depends on

Question # 8

It two waves of amplitude 'a' produce a resultant wave of amplitude a, then the phase difference between them will be

Question # 9

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

Question # 10

The maximum displacement of a body on either side of its equilibrium position is called

Question # 11

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

Question # 12

transverse wave motion is possible in:

Question # 13

When a body is performing S.H.M., its acceleration is

Question # 14

Shock absorber of the car is an example of

Question # 15

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

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ECAT Class Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:
A. Mechanical waves
B. Electromagnetic waves
C. Matter waves
D. All of them
2 It is possible to recognize a person by hearing his voice even if he is hidden behind a solid wall. This is due to the fact that his voice
A. Has a definite pitch
B. Has a definite quality
C. Has a definite capacity
D. Can penetrate the wall
3 The frequency of free vibrations is known as
A. free frequency
B. forced frequency
C. natural frequency
D. un-natural frequency
4 The waves which propagate by the collision of material particles are known as
A. e.m. waves
B. mechanical waves
C. light waves
D. microwaves
5 The loudness and pitch of a sound note depends on
A. Intensity and velocity
B. Frequency and velocity
C. Intensity and frequency
D. Frequency and number of harmonic
6 If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get
A. diffraction
B. beat
C. interference
D. resonance
7 At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is
A. Sinusoidal shape with amplitude A/3
B. Sinusoidal shape with amplitude A/2
C. Sinusoidal shape with amplitude A
D. Straight line
8 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
9 Data transmitted along glass-fiber cables is in the form of pulses of monochromatic red light each of duration 2.5 ns. Which of the following is the best estimate of the number of wavelength in each pulse?
A. 103
B. 106
C. 109
D. 1012
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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