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 body is executing free vibrations when it oscilates

Question # 2

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

Question # 3

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

Question # 4

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 # 5

A swing has

Question # 6

The number of vibrating body at any instant from its equilibrium position is called

Question # 7

If the length of a simple pendulum is 0.25 m its time period would be

Question # 8

At 'resonance' the transfer of energy from deriving source to the oscillator is

Question # 9

Two sources of sound are said to be coherent if

Question # 10

The speed of sound in a medium depends on

Question # 11

The damping depends upon the

Question # 12

Which type of wave can be set up in solids

Question # 13

When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be

Question # 14

When sound waves travel from air to water which of these remains constant?

Question # 15

There is no net transfer of energy by particle of medium in

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The distance covered by the wave during one period is called its:
A. Wave number
B. Frequency
C. Wavelength
D. Time period
2 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave
3 A physical system under going forced vibrations is known as
A. Simple harmonic oscillator
B. Compound harmonic oscillator
C. Physical harmonic oscillator
D. driven harmonic oscillator
4 transverse wave motion is possible in:
A. Air
B. A mixture of NH3and O2
C. Strings
D. All of these
5 Velocity of sound in vacuum (in m/s) is
A. 330
B. 1000
C. 156
D. 0
6 If the length of a simple pendulum is 0.25 m its time period would be
A. 1.0 s
B. 2.0 s
C. 3.0 s
D. 4.0 s
7 In stationary waves
A. Energy is uniformly distributed
B. Energy is minimum at nodes and maximum at antinodes
C. Energy is maximum at nodes and minimum at antidotes
D. Alternating maximum and minimum energy producing at nodes and antinodes
8 The weight 'mg' of the bob is resolved into
A. one component
B. two components
C. three components
D. four components
9 A body is executing free vibrations when it oscilates
A. with the interference of an external force
B. without the interference of an external force
C. with the interference of an internal force
D. none of them
10 Which one is not produced by sound waves in air?
A. Polarization
B. Diffraction
C. Refraction
D. Reflection

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