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

The process in which energy is dissipated from the oscillating system is known as

Question # 2

The expression for restoring force is

Question # 3

The wave motion set up in any medium depends upon:

Question # 4

The weight 'mg' of the bob is resolved into

Question # 5

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

Question # 6

When two progressive waves of nearly same frequencies superimpose and give rise to beats, then

Question # 7

The velocity of sound is greatest in

Question # 8

In the resonance condition, the amplitude of the oscillator becomes

Question # 9

If a wave can be polarized, it must be

Question # 10

In compressional wave,the layer of medium having reduced pressure is called:

Question # 11

Of the following, the option ______ reminds of longitudinal waves.

Question # 12

Laplace formula is derived from

Question # 13

The total energy of spring mass system is

Question # 14

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

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 velocity of sound at same temperature is maximum in
A. H2
B. N2
C. O2
D. NH3
2 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
3 If the time period a simple pendulum is 2 s, its frequency would be
A. 2 Hz
B. 1.5 Hz
C. 1.0 Hz
D. 0.5 Hz
4 The time period of pendulums of different lengths would be
A. same
B. different
C. both of them
D. none of them
5 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
6 When a wave is travels from one place to another, it transfers:
A. Matter
B. Energy
C. Momentum
D. Both B and C
7 Time period of simple pendulum is independent of
A. length
B. mass
C. acceleration due to gravity
D. none of them
8 The waves produced in a microwave oven have wavelength.
A. 12 mm
B. 12 cm
C. 12 m
D. 12 mm
9 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
10 One complete round trip of the body about its mean position is called
A. displacement
B. vibration
C. a complete motion
D. an acceleration

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