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

Smaller the damping, the resonance will be

Question # 2

The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:

Question # 3

The velocity of sound at same temperature is maximum in

Question # 4

Two sources of sound are said to be coherent if

Question # 5

When a body moves to and fro motion, this type of motion is called

Question # 6

In the resonance condition, the amplitude of the oscillator becomes

Question # 7

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

Question # 8

If the length of second pendulum becomes four times then its time period will become

Question # 9

Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

Question # 10

Velocity of sound in vacuum (in m/s) is

Question # 11

Time period of simple pendulum is independent of

Question # 12

The waves which propagate through the oscillations of material particles are known as:

Question # 13

The time period of pendulums of different lengths would be

Question # 14

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

Question # 15

In the same medium, velocity of the wave:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The vibratory or oscillatory motion of a body is
A. translatory motion
B. back and forth motion about its mean position
C. free all motion
D. circular motion
2 When the bob of simple pendulum is at mean position, its K.E will be
A. maximum
B. minimum
C. zero
D. all of them
3 Velocity of sound in vacuum (in m/s) is
A. 330
B. 1000
C. 156
D. 0
4 A heavily damped system has a fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
5 While describing the motion of a simple pendulum, the frictional effects are
A. taken into account
B. completely ignored
C. partially ignored
D. none of them
6 Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:
A. Rope
B. Coil of spring
C. Water
D. All of them
7 Example of progressive wave is
A. transverse waves
B. longitudinal waves
C. both of them
D. none of them
8 Smaller the damping, the resonance will be
A. more flat
B. more sharp
C. both of them
D. none of them
9 In case of mechanical waves, we study the motion of
A. a single particle
B. collection of particle
C. any one of them
D. none of them
10 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
A. Same
B. 2 times
C. 4 times
D. 8 times

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