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 vibratory or oscillatory motion of a body is

Question # 2

Which one of the following is an example of resonance

Question # 3

Which of the following changes at an antinode in a stationary wave?

Question # 4

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

Question # 5

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is

Question # 6

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

Question # 7

A swing has

Question # 8

In the resonance condition, the amplitude of the oscillator becomes

Question # 9

SI unit of wave length is:

Question # 10

A traveling wave has a shape of:

Question # 11

Example of vibratory motion is

Question # 12

The temperature at which the speed of sound becomes double as was at 27°C is

Question # 13

To hear a clear echo, the reflecting surface must be at a minimum distance of

Question # 14

When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:

Question # 15

The square of 0.4 is:

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Sr.# Question Answer
1 Transverse waves can be set up:
A. Solids
B. Liquids
C. Gases
D. All of them
2 Sound waves in air always
A. Longitudinal
B. Transverse
C. Stationary
D. Electromagnetic
3 The characteristic of a body executing S.H.M is that its acceleration is
A. inversely proportional to displacement
B. directly proportional to displacement
C. independent of displacement
D. equal to zero
4 Smaller the damping, greater will be the
A. frequency
B. wavelength
C. amplitude
D. none of them
5 If a wave can be polarized, it must be
A. An electromagnetic wave
B. A longitudinal wave
C. A progressive wave
D. A transverse wave
6 For transmission of both transverse and longitudinal waves, we can use:
A. Solid
B. Gas
C. Plasma
D. None of these
7 The waves which propagate by the collision of material particles are known as
A. e.m. waves
B. mechanical waves
C. light waves
D. microwaves
8 If the displacement of a body executing S.H.M is plotted against time, then the curve is known as
A. frequency of S.H.M
B. period of S.H.M
C. wave form
D. none of them
9 Which of the following medium/media can transmit both transverse and longitudinal waves:
A. Solids
B. Liquids
C. Gases
D. All of them
10 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

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