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 one of the following elasticizes is possessed by fluids:

Question # 2

When two waves with same frequency and constant phase difference phase difference interfere

Question # 3

A physical system under going forced vibrations is known as

Question # 4

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

Question # 5

Shock absorber of the car is an example of

Question # 6

The velocity of sound in air depends upon

Question # 7

If a wave can be polarized, it must be

Question # 8

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

Question # 9

The portion of the water above its mean level forms a:

Question # 10

A heavily damped system has a fairly

Question # 11

Through which character we can distinguish the light waves from sound waves

Question # 12

When the bob of simple pendulum is at mean position, its K.E will be

Question # 13

When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be

Question # 14

The weight 'mg' of the bob is resolved into

Question # 15

Transverse waves can be set up:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 If two waves of length 50 cm and 51 cm produced 12 beats per second, the velocity of sound is
A. 360 m/s
B. 306 m/s
C. 331 m/s
D. 340 ms
2 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
3 When sound waves travel from air to water which of these remains constant?
A. Velocity
B. Frequency
C. Wavelength
D. All the above
4 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
5 Through which character we can distinguish the light waves from sound waves
A. Interference
B. Refraction
C. Polarization
D. Reflection
6 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
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 Fluids can transmit:
A. Transverse wave
B. Compressional wave
C. Both of them
D. None of them
9 The weight 'mg' of the bob is resolved into
A. one component
B. two components
C. three components
D. four components
10 The frequency of free vibrations is known as
A. free frequency
B. forced frequency
C. natural frequency
D. un-natural frequency

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