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

As the bob of the pendulum moves to and fro which of the force is experienced by the bob

Question # 2

The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

Question # 3

The vibrations of factory floor caused by the running of heavy machinery is an example of

Question # 4

Of the following, the option ______ reminds of longitudinal waves.

Question # 5

In a resonance situation the amplitude of the motion may become extra ordinarily large, if

Question # 6

Data transmitted along glass-fiber cables is in the form of pulses of monochromatic red light each of duration 2.5 ns. Which of the following is the best estimate of the number of wavelength in each pulse?

Question # 7

Smaller the damping, greater will be the

Question # 8

Which waves are used in sonography?

Question # 9

Shock absorber of the car is an example of

Question # 10

Which type of wave can be set up in solids

Question # 11

When temperature increase, the frequency of a tuning fork

Question # 12

Such oscillations in which the amplitude decreases steadily with time, are called

Question # 13

The principle of superposition states that

Question # 14

Fluids can transmit:

Question # 15

When a wave is travels from one place to another, it transfers:

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ECAT Chapter 8 Important MCQ's

Sr.# Question Answer
1 Crests and troughs are formed in:
A. Longitudinal waves
B. Transverse waves
C. Both of these
D. None of these
2 Time period of simple pendulum is independent of
A. length
B. mass
C. acceleration due to gravity
D. none of them
3 Si units of time period is
A. second
B. hertz
C. revolution
D. vibration/sec
4 Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?
A. 100 ms-1
B. 200 ms-1
C. 450 ms-1
D. 900 ms-1
5 Laplace formula is derived from
A. Isothermal change
B. Adiabatic change
C. Isobaric change
D. None of these
6 Which one of the following elasticizes is possessed by fluids:
A. Young's elastic modulus (length)
B. Bulk elastic modulus (volume)
C. Modulus of rigidity (shape)
D. None of these
7 A heavily damped system has a fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
8 Fluids can transmit:
A. Transverse wave
B. Compressional wave
C. Both of them
D. None of them
9 For a body executing S. H. M, its
A. momentum remains constant
B. potential energy remains constant
C. kinetic energy remains constant
D. total energy remains constant
10 One complete round trip of the body about its mean position is called
A. displacement
B. vibration
C. a complete motion
D. an acceleration

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