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 speed of sound in a medium depends on

Question # 2

It two waves of amplitude 'a' produce a resultant wave of amplitude a, then the phase difference between them will be

Question # 3

Energy is not carried by

Question # 4

If a wave can be polarized, it must be

Question # 5

Which waves are used in sonography?

Question # 6

Fluids can transmit:

Question # 7

The damping depends upon the

Question # 8

The phase determines the

Question # 9

Longitudinal waves are also called:

Question # 10

If the mass of the simple pendulum becomes double, its time period

Question # 11

The temperature at which the speed of sound becomes double as was at 27°C is

Question # 12

The distance covered by the wave in one second is:

Question # 13

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

Question # 14

A body is executing free vibrations when it oscilates

Question # 15

A physical system under going forced vibrations is known as

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 A simple pendulum consists of a
A. small light bob
B. small heavy bob
C. big light bob
D. big heavy bob
2 The process in which energy is dissipated from the oscillating system is known as
A. resonance
B. interference
C. diffraction
D. damping
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 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 An object undergoes S.H.M has maximum acceleration when its displacement form the means position
A. maximum
B. zero
C. half of the maximum value
D. one third of the maximum value
6 The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as
A. longitudinal waves
B. transverse waves
C. non-mechanical waves
D. none of them
7 The natural frequency of a pendulum which is vibrating freely, depends upon its
A. mass
B. length
C. material
D. all of them
8 Which of the following changes at an antinode in a stationary wave?
A. Density only
B. Pressure only
C. Both pressure and density
D. Neither pressure nor density
9 The time period of pendulums of different lengths would be
A. same
B. different
C. both of them
D. none of them
10 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

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