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

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

Question # 3

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

Question # 4

The time required to complete on vibration is called

Question # 5

transverse wave motion is possible in:

Question # 6

The expression for restoring force is

Question # 7

An object undergoes S.H.M has maximum acceleration when its displacement form the means position

Question # 8

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

Question # 9

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

Question # 10

For transmission of both transverse and longitudinal waves, we can use:

Question # 11

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

Question # 12

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

Question # 13

Which waves are used in sonography?

Question # 14

The distance covered by the wave during one period is called its:

Question # 15

Decibel is unit of

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The waves moving from a sitar to a listener in air are
A. Longitudinal progressive
B. Longitudinal stationary
C. Transverse progressive
D. Transverse stationary
2 The time required to complete on vibration is called
A. frequency
B. total time
C. time period
D. velocity
3 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
4 A second's pendulum is a pendulum whose time period is
A. 1 second
B. 2 seconds
C. 3 seconds
D. 4 seconds
5 Example of progressive wave is
A. transverse waves
B. longitudinal waves
C. both of them
D. none of them
6 If the time period a simple pendulum is 2 s, its frequency would be
A. 2 Hz
B. 1.5 Hz
C. 1.0 Hz
D. 0.5 Hz
7 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
8 If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get
A. diffraction
B. beat
C. interference
D. resonance
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 What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?
A. 1 MHz
B. 10 Hz
C. 1 GHz
D. 100000 Hz

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