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

Question # 2

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

Question # 3

The vibratory or oscillatory motion of a body is

Question # 4

Waves transport energy

Question # 5

The velocity of sound at same temperature is maximum in

Question # 6

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

Question # 7

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

Question # 8

An object undergoes S.H.M has maximum acceleration when its displacement form the means position

Question # 9

The weight 'mg' of the bob is resolved into

Question # 10

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

Question # 11

A traveling wave has a shape of:

Question # 12

The frequency of free vibrations is known as

Question # 13

Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of

Question # 14

Longitudinal waves are also called:

Question # 15

For production of beats the two sources must have

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Which of the following changes at an antinode in a stationary wave?
A. Density only
B. Pressure only
C. Both pressure and density
D. Neither pressure nor density
2 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
3 Velocity of sound in a diatomic as is 300 m/sec. what is its rms velocity?
A. 400 m/sec
B. 40 m/sec
C. 430 m/sec
D. 300 m/sec
4 The distance covered by the wave during one period is called its:
A. Wave number
B. Frequency
C. Wavelength
D. Time period
5 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
6 The velocity of sound in air depends upon
A. Density and elasticity of gas
B. Pressure
C. Wavelength
D. Amplitude and frequency of sound
7 The distance covered by the wave in one second is:
A. Wave number
B. Wave length
C. Frequency
D. Wave speed
8 For transmission of both transverse and longitudinal waves, we can use:
A. Solid
B. Gas
C. Plasma
D. None of these
9 The natural frequency of a pendulum which is vibrating freely, depends upon its
A. mass
B. length
C. material
D. all of them
10 When a wave is travels from one place to another, it transfers:
A. Matter
B. Energy
C. Momentum
D. Both B and C

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