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

Which of the following is the longitudinal waves?

Question # 3

Velocity of sound in a diatomic as is 300 m/sec. what is its rms velocity?

Question # 4

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

Question # 5

Which type of wave can be set up in solids

Question # 6

The square of 0.4 is:

Question # 7

A weakly damped system has fairly

Question # 8

SI unit of frequency is

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

Example of progressive wave is

Question # 11

Decibel is unit of

Question # 12

The bob of a simple pendulum is suspended by

Question # 13

In compressional wave,the layer of medium having reduced pressure is called:

Question # 14

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

Question # 15

A simple pendulum consists of a

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The portion of the water above its mean level forms a:
A. Crest
B. Trough
C. Both A and B
D. None of these
2 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
3 Energy is not carried by
A. Transverse progressive waves
B. Longitudinal vibration
C. Stationary waves
D. Electromagnetic
4 The waves in which the particles of the medium have displacement along the direction of propagation of waves are called
A. longitudinal waves
B. transverse waves
C. non-mechanical waves
D. none of them
5 Transverse waves can be set up:
A. Solids
B. Liquids
C. Gases
D. All of them
6 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
7 In case of mechanical waves, we study the motion of
A. a single particle
B. collection of particle
C. any one of them
D. none of them
8 For transmission of both transverse and longitudinal waves, we can use:
A. Solid
B. Gas
C. Plasma
D. None of these
9 If we increase the length of a simple pendulum four times, its time period will become
A. 2 times
B. 3 times
C. 4 times
D. 6 times
10 An object undergoes S.H.M has maximum acceleration when its displacement form the means position
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value

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