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

Example of progressive wave is

Question # 2

The expression for restoring force is

Question # 3

In stationary waves

Question # 4

The loudness and pitch of a sound note depends on

Question # 5

One complete round trip of the body about its mean position is called

Question # 6

In case of mechanical waves, we study the motion of

Question # 7

Fidelity refers to

Question # 8

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

Question # 9

The number of vibrating body at any instant from its equilibrium position is called

Question # 10

Sound waves in air always

Question # 11

The velocity of sound is greatest in

Question # 12

For a body executing S. H. M, its

Question # 13

While describing the motion of a simple pendulum, the frictional effects are

Question # 14

A swing has

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 A physical system under going forced vibrations is known as
A. Simple harmonic oscillator
B. Compound harmonic oscillator
C. Physical harmonic oscillator
D. driven harmonic oscillator
2 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
3 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
4 The phase determines the
A. displacement
B. amplitude
C. frequency
D. state of motion of vibrating body
5 Which one of the following could be the frequency of ultraviolet radiation?
A. 1.0 x 106Hz
B. 1.0 x 109Hz
C. 1.0 x 1012Hz
D. 1.0 x 1015Hz
6 The velocity of sound at same temperature is maximum in
A. H2
B. N2
C. O2
D. NH3
7 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
8 The waves produced in a microwave oven have wavelength.
A. 12 mm
B. 12 cm
C. 12 m
D. 12 mm
9 When a body moves to and fro motion, this type of motion is called
A. translatory motion
B. circular motion
C. oscillatory motion
D. all of them
10 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations

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