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

A physical system under going forced vibrations is known as

Question # 2

Smaller the damping, greater will be the

Question # 3

Acceleration of the mass at any instant is given by

Question # 4

Which one of the following elasticizes is possessed by fluids:

Question # 5

The velocity of sound is greatest in

Question # 6

Two sources of sound are said to be coherent if

Question # 7

If the time period a simple pendulum is 2 s, its frequency would be

Question # 8

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

Question # 9

The phase determines the

Question # 10

An object undergoes S.H.M has maximum acceleration when its displacement form the means position

Question # 11

A heavily damped system has a fairly

Question # 12

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

Question # 13

Decibel is unit of

Question # 14

In stationary waves

Question # 15

Which of the following is the longitudinal waves?

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave
2 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
3 Wave disturbances may also come in a concentrated bundle, like shock wave from an aeroplane flying at
A. subsonic speed
B. sonic speed
C. super sonic speed
D. any one of them
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 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 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
7 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
8 Which of the following is the longitudinal waves?
A. Sound waves
B. Waves on plucked string
C. Water waves
D. Light waves
9 When a mass 'm' is pulled slowly through a distance 'xo' , the elastic potential energy of the spring would be
A. P.E=Kx2o
B. P.E= 1/2kxo
C. P.E=1/2Kx2o
D. P.E=Kx2o
10 If the length of second pendulum becomes four times then its time period will become
A. Four time
B. Two times
C. Six times
D. Eight times

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