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 frequency of free vibrations is known as

Question # 2

Fluids can transmit:

Question # 3

When two waves with same frequency and constant phase difference phase difference interfere

Question # 4

A simple pendulum consists of a

Question # 5

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

Question # 6

Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

Question # 7

The time required to complete on vibration is called

Question # 8

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

Question # 9

Shock absorber of the car is an example of

Question # 10

In case of mechanical waves, we study the motion of

Question # 11

Transverse waves can be set up:

Question # 12

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

Question # 13

If the mass of the simple pendulum becomes double, its time period

Question # 14

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

Question # 15

Velocity of sound in vacuum (in m/s) is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 If a freely oscillating system is subjected to an external force, then
A. free vibrations will take place
B. the body will move with its natural frequency
C. forced vibrations will take place
D. none of them
2 One complete round trip of the body about its mean position is called
A. displacement
B. vibration
C. a complete motion
D. an acceleration
3 The wave motion set up in any medium depends upon:
A. Elasticity
B. Inertia
C. Density
D. All of these
4 The time period of pendulums of different lengths would be
A. same
B. different
C. both of them
D. none of them
5 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
6 The velocity of sound at same temperature is maximum in
A. H2
B. N2
C. O2
D. NH3
7 Crests and troughs are formed in:
A. Longitudinal waves
B. Transverse waves
C. Both of these
D. None of these
8 Of the following, the option ______ reminds of longitudinal waves.
A. Sound waves
B. Heat waves
C. Electromagnetic waves
D. Light waves
9 Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?
A. 100 ms-1
B. 200 ms-1
C. 450 ms-1
D. 900 ms-1
10 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

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