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

In a resonance situation the amplitude of the motion may become extra ordinarily large, if

Question # 2

Si units of time period is

Question # 3

The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:

Question # 4

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

Question # 5

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

Question # 6

Fidelity refers to

Question # 7

When the bob of simple pendulum is at mean position, its K.E will be

Question # 8

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

Question # 9

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

Question # 10

Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:

Question # 11

When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to

Question # 12

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

Question # 13

If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be

Question # 14

Fluids can transmit:

Question # 15

Angular frequency 'w' is basically a characteristics of

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 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°
2 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
3 In transverse waves, the individual particles of the medium move:
A. In circles
B. Perpendicular to the direction of level
C. Parallel to the direction of level
D. None of these
4 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
5 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
6 The principle of superposition states that
A. The total displacement due to several waves is the sum of the displacement due to those waves acting individually
B. Two stationary waves superimpose to give two progressive waves
C. A diffraction pattern consists of many interference patterns superimposed on one another
D. Two progressive waves superimpose to give a stationary wave
7 The natural frequency of a pendulum which is vibrating freely, depends upon its
A. mass
B. length
C. material
D. all of them
8 A weakly damped system has fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
9 The restoring force always directed towards the
A. extreme position
B. mean position
C. both of them
D. none of them
10 The instantaneous velocity of a body moving along a circle is directed
A. along the radius
B. along the tangent
C. away from the circle
D. none of them

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