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

Fidelity refers to

Question # 2

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

Question # 3

In the resonance condition, the amplitude of the oscillator becomes

Question # 4

Shock absorber of the car is an example of

Question # 5

The waves produced in a microwave oven have wavelength.

Question # 6

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

Question # 7

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

Question # 8

In the same medium, velocity of the wave:

Question # 9

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

Question # 10

The waves in which the particles of the medium have displacement along the direction of propagation of waves are called

Question # 11

If two waves of length 50 cm and 51 cm produced 12 beats per second, the velocity of sound is

Question # 12

When temperature increase, the frequency of a tuning fork

Question # 13

A second's pendulum is a pendulum whose time period is

Question # 14

Which one of the following elasticizes is possessed by fluids:

Question # 15

For production of beats the two sources must have

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 A simple pendulum consists of a
A. small light bob
B. small heavy bob
C. big light bob
D. big heavy bob
2 An object undergoes S.H.M has maximum speed when its displacement from the mean position is
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value
3 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
4 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
5 With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are
A. Energy, momentum and mass
B. Energy
C. Energy and mass
D. Energy and linear momentum
6 The vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called
A. rotatory motion
B. motion under gravity
C. angular motion
D. simple harmonic motion
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 When two waves with same frequency and constant phase difference phase difference interfere
A. There is a gain of energy
B. There is a loss of energy
C. The energy is redistributed and the distribution changes with time
D. The energy is redistributed and the distribution remains constant with time
9 To hear a clear echo, the reflecting surface must be at a minimum distance of
A. 10 m
B. 16.5 m
C. 33 m
D. 66 m
10 The maximum displacement of a body on either side of its equilibrium position is called
A. frequency
B. amplitude
C. displacement
D. time period

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