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

A body is executing free vibrations when it oscilates

Question # 2

The force which opposes the applied force producing the displacement in the spring is called

Question # 3

The waves which propagate through the oscillations of material particles are known as:

Question # 4

When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to

Question # 5

The restoring force always directed towards the

Question # 6

Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

Question # 7

The waves produced in a microwave oven have frequency

Question # 8

Fidelity refers to

Question # 9

The waves produced in a microwave oven have wavelength.

Question # 10

Decibel is unit of

Question # 11

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

Question # 12

The bob of a simple pendulum is suspended by

Question # 13

The velocity of sound at same temperature is maximum in

Question # 14

The portion of the water above its mean level forms a:

Question # 15

When an oscillatory motion repeats itself, then this type of motion is called

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 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
2 The waves which propagate by the collision of material particles are known as
A. e.m. waves
B. mechanical waves
C. light waves
D. microwaves
3 If F=0.04 N and X=4 cm then K=
A. 1 Nm-1
B. 2 Nm-1
C. 3 Nm-1
D. 4 Nm-1
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 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 Time period of a simple pendulum depends upon the
A. length of the pendulum
B. acceleration due to gravity
C. none of them
D. both of them
7 If the mass of the simple pendulum becomes double, its time period
A. increase
B. decreases
C. remains constant
D. none of them
8 The restoring force always directed towards the
A. extreme position
B. mean position
C. both of them
D. none of them
9 Crests and troughs are formed in:
A. Longitudinal waves
B. Transverse waves
C. Both of these
D. None of these
10 Velocity of sound in a diatomic as is 300 m/sec. what is its rms velocity?
A. 400 m/sec
B. 40 m/sec
C. 430 m/sec
D. 300 m/sec

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