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 example of mechanical wave is

Question # 2

Time period of simple pendulum is independent of

Question # 3

When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be

Question # 4

The distance covered by the wave during one period is called its:

Question # 5

While describing the motion of a simple pendulum, the frictional effects are

Question # 6

Which one of the following could be the frequency of ultraviolet radiation?

Question # 7

Which of the following is the longitudinal waves?

Question # 8

The expression for restoring force is

Question # 9

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

Question # 10

When a body is performing S.H.M., its acceleration is

Question # 11

Decibel is unit of

Question # 12

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

Question # 13

transverse wave motion is possible in:

Question # 14

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

Question # 15

The square of 0.4 is:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Ultra-violet rays differ from X-rays in that they
A. Cannot be diffracted
B. Cannot be polarized
C. Have a lower frequency
D. Are deviated when they pass through a magnetic field
2 If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be
A. Increasing by a factor of 2
B. Decreasing by a factor of 2
C. Decreasing by a factor of 4
D. Unchanged
3 The vibrations of factory floor caused by the running of heavy machinery is an example of
A. free vibration
B. natural vibrations
C. forced vibrations
D. all of them
4 Energy is not carried by
A. Transverse progressive waves
B. Longitudinal vibration
C. Stationary waves
D. Electromagnetic
5 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
6 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
7 Which one of the following could be the frequency of ultraviolet radiation?
A. 1.0 x 106Hz
B. 1.0 x 109Hz
C. 1.0 x 1012Hz
D. 1.0 x 1015Hz
8 In transverse waves, the individual particles of the medium move:
A. In circles
B. Perpendicular to the direction of level
C. Parallel to the direction of level
D. None of these
9 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
10 Such oscillations in which the amplitude decreases steadily with time, are called
A. resonance
B. force oscillations
C. large oscillations
D. damped oscillations

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