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

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

Question # 2

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

Question # 3

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

Question # 4

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 # 5

In solids, only following type/s of wave can travel:

Question # 6

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

Question # 7

The vibratory or oscillatory motion of a body is

Question # 8

Ultra-violet rays differ from X-rays in that they

Question # 9

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

Question # 10

Which of the following is an example of a S.H.M?

Question # 11

Which one of the following wave motions is transverse:

Question # 12

Crests and troughs are formed in:

Question # 13

The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as

Question # 14

For production of beats the two sources must have

Question # 15

The resonance will be sharp, if the amplitude decreases rapidly at a frequency

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Sound waves in air always
A. Longitudinal
B. Transverse
C. Stationary
D. Electromagnetic
2 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
3 An object undergoes S.H.M has maximum acceleration when its displacement form the means position
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value
4 What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?
A. 1 MHz
B. 10 Hz
C. 1 GHz
D. 100000 Hz
5 When a wave is travels from one place to another, it transfers:
A. Matter
B. Energy
C. Momentum
D. Both B and C
6 The damping depends upon the
A. amplitude
B. sharpness
C. both of them
D. none of them
7 The square of 0.4 is:
A. Greater than 0.4
B. Smaller than 0.4
C. Equal to 0.4
D. None of them
8 With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are
A. Energy, momentum and mass
B. Energy
C. Energy and mass
D. Energy and linear momentum
9 Two sources of sound are said to be coherent if
A. The produce sounds of equal intensity
B. They produce sounds of equal frequency
C. They produce sound waves vibrating with the same phase
D. They produce sound waves with zero or constant phase difference all instant of time
10 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

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