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

Question # 2

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

Question # 3

One complete round trip of the body about its mean position is called

Question # 4

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

Question # 5

The velocity of sound in air depends upon

Question # 6

Two sources of sound are said to be coherent if

Question # 7

Which of the following is not mechanical wave?

Question # 8

A swing has

Question # 9

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

Question # 10

An object undergoes S.H.M has maximum speed when its displacement from the mean position is

Question # 11

Which type of wave can be set up in solids

Question # 12

A simple pendulum consists of a

Question # 13

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

Question # 14

Fidelity refers to

Question # 15

If a simple pendulum is shifted from karachi to K-2 cliff, its time period

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 At 'resonance' the transfer of energy from deriving source to the oscillator is
A. maximum
B. minimum
C. zero
D. none of them
2 Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as
A. waves
B. beat
C. interference
D. resonance
3 The wave motion set up in any medium depends upon:
A. Elasticity
B. Inertia
C. Density
D. All of these
4 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave
5 The process in which energy is dissipated from the oscillating system is known as
A. resonance
B. interference
C. diffraction
D. damping
6 Which one of the following is an example of resonance
A. swing
B. tuning a radio
C. microwave oven
D. all of them
7 The expression of Hook's law is
A. F=ma
B. F=kx
C. F= -kx
D. -kx=ma
8 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
9 In the formula for finding the speed of waves in the spring, unit of m in SIn units is:
A. kg
B. kg-meter
C. kg/meter
D. Meter/kg
10 When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be
A. 45°
B. 90°
C. 135°
D. 180°

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