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 total energy of spring mass system is

Question # 2

For a body executing S. H. M, its

Question # 3

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

Question # 4

If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get

Question # 5

In the resonance condition, the amplitude of the oscillator becomes

Question # 6

If a wave can be polarized, it must be

Question # 7

Which of the following is an example of a S.H.M?

Question # 8

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

Question # 9

A heavily damped system has a fairly

Question # 10

If the length of a simple pendulum is 0.25 m its time period would be

Question # 11

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is

Question # 12

A physical system under going forced vibrations is known as

Question # 13

The expression for restoring force is

Question # 14

Transverse waves can be set up:

Question # 15

The speed of sound in a medium depends on

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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 The expression for restoring force is
A. F=ma
B. F=kx
C. F= -kx
D. Kx=ma
3 Which one of the following elasticizes is possessed by fluids:
A. Young's elastic modulus (length)
B. Bulk elastic modulus (volume)
C. Modulus of rigidity (shape)
D. None of these
4 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
5 In the same medium, velocity of the wave:
A. Goes on increasing
B. Remains constant
C. Goes on decreasing
D. None of these
6 A simple pendulum consists of a
A. small light bob
B. small heavy bob
C. big light bob
D. big heavy bob
7 A heavily damped system has a fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
8 The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:
A. Mechanical waves
B. Electromagnetic waves
C. Matter waves
D. All of them
9 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
10 Time period of simple pendulum is independent of
A. length
B. mass
C. acceleration due to gravity
D. none of them

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