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

Which of the following does not exhibit S.H.M?

Question # 2

Velocity of sound in a diatomic as is 300 m/sec. what is its rms velocity?

Question # 3

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

Question # 4

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

Question # 5

When the bob of simple pendulum is at extreme position, its K.E. will be

Question # 6

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

Question # 7

Which type of wave can be set up in solids

Question # 8

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

Question # 9

When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:

Question # 10

Two sources of sound are said to be coherent if

Question # 11

If a wave can be polarized, it must be

Question # 12

SI unit of wave length is:

Question # 13

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

Question # 14

A weakly damped system has fairly

Question # 15

The phase determines the

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The waves which propagate out in space due to oscillation of electric and magnetic fields are known as
A. e.m. waves
B. mechanical waves
C. sound waves
D. water waves
2 In the resonance condition, the amplitude of the oscillator becomes
A. very large
B. very small
C. zero
D. any one of them
3 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
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 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
6 A stationary sound wave has frequency 165 Hz (speed of sound in air = 330 m/s) then distance between two consecutive nodes is
A. 2 m
B. 1 m
C. 0.5 m
D. 4 m
7 The time required to complete on vibration is called
A. frequency
B. total time
C. time period
D. velocity
8 The force which opposes the applied force producing the displacement in the spring is called
A. restoring force
B. periodic force
C. centripetal force
D. resistive force
9 Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as
A. waves
B. beat
C. interference
D. resonance
10 In the formula for finding the speed of waves in the spring, unit of m in SIn units is:
A. kg
B. kg-meter
C. kg/meter
D. Meter/kg

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