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

Two sources of sound are said to be coherent if

Question # 2

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

Question # 3

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

Question # 4

Which one of the following elasticizes is possessed by fluids:

Question # 5

A wave, which transfer energy by moving away from the source of disturbance is called a

Question # 6

Which one is not produced by sound waves in air?

Question # 7

When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be

Question # 8

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

Question # 9

Fidelity refers to

Question # 10

Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as

Question # 11

Si units of time period is

Question # 12

An object undergoes S.H.M has maximum speed when its displacement from the mean position is

Question # 13

The instantaneous velocity of a body moving along a circle is directed

Question # 14

The vibratory or oscillatory motion of a body is

Question # 15

The expression of Hook's law is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The waves moving from a sitar to a listener in air are
A. Longitudinal progressive
B. Longitudinal stationary
C. Transverse progressive
D. Transverse stationary
2 When the bob of simple pendulum is at extreme position, its K.E. will be
A. maximum
B. minimum
C. zero
D. all of them
3 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
4 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
5 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
6 The force which opposes the applied force producing the displacement in the spring is called
A. restoring force
B. periodic force
C. centripetal force
D. resistive force
7 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
8 Smaller the damping, the resonance will be
A. more flat
B. more sharp
C. both of them
D. none of them
9 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
10 The waves produced in a microwave oven have wavelength.
A. 12 mm
B. 12 cm
C. 12 m
D. 12 mm

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