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

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

Question # 2

A swing has

Question # 3

Which one is not produced by sound waves in air?

Question # 4

Which one of the following could be the frequency of ultraviolet radiation?

Question # 5

If the time period a simple pendulum is 2 s, its frequency would be

Question # 6

The phase determines the

Question # 7

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

Question # 8

The example of mechanical wave is

Question # 9

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

Question # 10

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

Question # 11

A heavily damped system has a fairly

Question # 12

In the production of beats by 2 waves of same amplitude and nearly same frequency, the maximum intensity to each of the constituent waves is

Question # 13

SI unit of frequency is

Question # 14

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

Question # 15

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The waves in which the particles of the medium have displacement along the direction of propagation of waves are called
A. longitudinal waves
B. transverse waves
C. non-mechanical waves
D. none of them
2 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
3 The process in which energy is dissipated from the oscillating system is known as
A. resonance
B. interference
C. diffraction
D. damping
4 Fidelity refers to
A. Reproduction of original sound
B. Reproduction of original image
C. Reproduction of music
D. Reproduction of a CD from original copy
5 The portion of the water above its mean level forms a:
A. Crest
B. Trough
C. Both A and B
D. None of these
6 In transverse waves, the individual particles of the medium move:
A. In circles
B. Perpendicular to the direction of level
C. Parallel to the direction of level
D. None of these
7 When a body is performing S.H.M., its acceleration is
A. inversely proportional to the displacement
B. directly proportional to the applied force
C. directly proportional to the amplitude
D. directly proportional to the displacement but in opposite direction
8 The total energy of spring mass system is
A. zero
B. changing with time
C. constant
D. none of them
9 Two sound waves of slightly different frequencies propagating in the same direction produce beats due to
A. Interference
B. Diffraction
C. Polarization
D. Refraction
10 The instantaneous velocity of a body moving along a circle is directed
A. along the radius
B. along the tangent
C. away from the circle
D. none of them

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