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

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

Question # 2

The loudness and pitch of a sound note depends on

Question # 3

When a wave is travels from one place to another, it transfers:

Question # 4

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

Question # 5

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

Question # 6

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 # 7

Such oscillations in which the amplitude decreases steadily with time, are called

Question # 8

Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of

Question # 9

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

Question # 10

A physical system under going forced vibrations is known as

Question # 11

Decibel is unit of

Question # 12

A heavily damped system has a fairly

Question # 13

For a body executing S. H. M, its

Question # 14

Acceleration of the mass at any instant is given by

Question # 15

Smaller the damping, the resonance will be

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 In solids, only following type/s of wave can travel:
A. Transverse
B. Longitudinal
C. Both A and B
D. None of them
2 A swing has
A. one natural frequency
B. two natural frequencies
C. three natural frequencies
D. four natural frequencies
3 If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:
A. Stationary waves
B. Transverse waves
C. Both of these
D. None of these
4 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
5 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
6 The frequency of free vibrations is known as
A. free frequency
B. forced frequency
C. natural frequency
D. un-natural frequency
7 Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:
A. Rope
B. Coil of spring
C. Water
D. All of them
8 Fidelity refers to
A. Reproduction of original sound
B. Reproduction of original image
C. Reproduction of music
D. Reproduction of a CD from original copy
9 Angular frequency 'w' is basically a characteristics of
A. linear motion
B. circular motion
C. both of them
D. none of them
10 transverse wave motion is possible in:
A. Air
B. A mixture of NH3and O2
C. Strings
D. All of these

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