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

Ultra-violet rays differ from X-rays in that they

Question # 2

The expression of Hook's law is

Question # 3

Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:

Question # 4

The velocity of sound is greatest in

Question # 5

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

Question # 6

Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of

Question # 7

The phase determines the

Question # 8

Laplace formula is derived from

Question # 9

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

Question # 10

The waves in which the particles of the medium have displacement along the direction of propagation of waves are called

Question # 11

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

Question # 12

transverse wave motion is possible in:

Question # 13

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

Question # 14

The total energy of spring mass system is

Question # 15

Shock absorber of the car is an example of

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 When the bob of simple pendulum is at extreme position, its K.E. will be
A. maximum
B. minimum
C. zero
D. all of them
2 The maximum displacement of a body on either side of its equilibrium position is called
A. frequency
B. amplitude
C. displacement
D. time period
3 For a body executing S. H. M, its
A. momentum remains constant
B. potential energy remains constant
C. kinetic energy remains constant
D. total energy remains constant
4 To hear a clear echo, the reflecting surface must be at a minimum distance of
A. 10 m
B. 16.5 m
C. 33 m
D. 66 m
5 If the mass of the simple pendulum becomes double, its time period
A. increase
B. decreases
C. remains constant
D. none of them
6 It is possible to recognize a person by hearing his voice even if he is hidden behind a solid wall. This is due to the fact that his voice
A. Has a definite pitch
B. Has a definite quality
C. Has a definite capacity
D. Can penetrate the wall
7 Which of the following is not mechanical wave?
A. Sound wave
B. Light wave
C.
wave produced in spring
D. None of them
8 Waves transport energy
A. without transport energy
B. with matter
C. both of them
D. none of them
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 There is no net transfer of energy by particle of medium in
A. Longitudinal wave
B. Transverse wave
C. Progressive wave
D. Stationary wave

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