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

Example of vibratory motion is

Question # 2

For transmission of both transverse and longitudinal waves, we can use:

Question # 3

If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be

Question # 4

The velocity of sound in air depends upon

Question # 5

Which one of the following elasticizes is possessed by fluids:

Question # 6

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

Question # 7

The wave motion set up in any medium depends upon:

Question # 8

At 'resonance' the transfer of energy from deriving source to the oscillator is

Question # 9

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

Question # 10

In the formula for finding the speed of waves in the spring, unit of m in SIn units is:

Question # 11

The wave form of S.H.M will be

Question # 12

Time period of a simple pendulum depends upon the

Question # 13

Which waves are used in sonography?

Question # 14

The speed of sound in a medium depends on

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 In the formula for finding the speed of waves in the spring, unit of m in SIn units is:
A. kg
B. kg-meter
C. kg/meter
D. Meter/kg
2 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
3 Which one of the following wave motions is transverse:
A. Wave motion produced in water when a piece of stone is thrown into it
B. Pulling of weight hanging vertically with a spiral spring
C. Both of these
D. None of these
4 The waves produced in a microwave oven have wavelength.
A. 12 mm
B. 12 cm
C. 12 m
D. 12 mm
5 The resonance will be sharp, if the amplitude decreases rapidly at a frequency
A. equal to the resonant frequency
B. slight different from the resonant frequency
C. greatly different from the resonant frequency
D. any one of them
6 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
7 transverse wave motion is possible in:
A. Air
B. A mixture of NH3and O2
C. Strings
D. All of these
8 The expression of Hook's law is
A. F=ma
B. F=kx
C. F= -kx
D. -kx=ma
9 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
10 When sound waves travel from air to water which of these remains constant?
A. Velocity
B. Frequency
C. Wavelength
D. All the above

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