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 which propagate out in space due to oscillation of electric and magnetic fields are known as

Question # 2

Velocity of sound in vacuum (in m/s) is

Question # 3

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

Question # 4

If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:

Question # 5

The maximum displacement of a body on either side of its equilibrium position is called

Question # 6

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

Question # 7

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

Question # 8

Which waves are used in sonography?

Question # 9

Which type of wave can be set up in solids

Question # 10

The frequency of free vibrations is known as

Question # 11

Shock absorber of the car is an example of

Question # 12

When a body moves to and fro motion, this type of motion is called

Question # 13

Resonance occurs when one of the natural frequencies of vibration of the forced or driven harmonic oscillator

Question # 14

Wave disturbances may also come in a concentrated bundle, like shock wave from an aeroplane flying at

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 A wave, which transfer energy by moving away from the source of disturbance is called a
A. progressive wave
B. travelling wave
C. both of them
D. none of them
2 A simple pendulum consists of a
A. small light bob
B. small heavy bob
C. big light bob
D. big heavy bob
3 The damping depends upon the
A. amplitude
B. sharpness
C. both of them
D. none of them
4 A swing has
A. one natural frequency
B. two natural frequencies
C. three natural frequencies
D. four natural frequencies
5 The velocity of sound in air not effected by changes in
A. Moisture contents in air
B. Temperature of air
C. The atmosphere pressure
D. The composition of air
6 Smaller the damping, greater will be the
A. frequency
B. wavelength
C. amplitude
D. none of them
7 When a wave is travels from one place to another, it transfers:
A. Matter
B. Energy
C. Momentum
D. Both B and C
8 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?
A. 103
B. 106
C. 109
D. 1012
9 Through which character we can distinguish the light waves from sound waves
A. Interference
B. Refraction
C. Polarization
D. Reflection
10 The bob of a simple pendulum is suspended by
A. string
B. heavy inextensible string
C. light extensible string
D. light inextensible string

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