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

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

Question # 2

The process in which energy is dissipated from the oscillating system is known as

Question # 3

When half of the cycle of a body executing S.H.M is completed, then the phase of the vibration will be

Question # 4

Fluids can transmit:

Question # 5

The frequency of free vibrations is known as

Question # 6

The waves moving from a sitar to a listener in air are

Question # 7

The damping depends upon the

Question # 8

Angular frequency 'w' is basically a characteristics of

Question # 9

A physical system under going forced vibrations is known as

Question # 10

Example of progressive wave is

Question # 11

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

Question # 12

An object undergoes S.H.M has maximum speed when its displacement from the mean position is

Question # 13

The maximum displacement of a body on either side of its equilibrium position is called

Question # 14

The total energy of spring mass system is

Question # 15

If the time period a simple pendulum is 2 s, its frequency would be

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 If we increase the length of a simple pendulum four times, its time period will become
A. 2 times
B. 3 times
C. 4 times
D. 6 times
2 If the displacement of a body executing S.H.M is plotted against time, then the curve is known as
A. frequency of S.H.M
B. period of S.H.M
C. wave form
D. none of them
3 The velocity of sound in air depends upon
A. Density and elasticity of gas
B. Pressure
C. Wavelength
D. Amplitude and frequency of sound
4 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
5 If two waves of length 50 cm and 51 cm produced 12 beats per second, the velocity of sound is
A. 360 m/s
B. 306 m/s
C. 331 m/s
D. 340 ms
6 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
7 Which waves are used in sonography?
A. Microwaves
B. Infra red waved
C. Sound waves
D. Ultrasonic waves
8 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
9 Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?
A. 100 ms-1
B. 200 ms-1
C. 450 ms-1
D. 900 ms-1
10 The maximum displacement of a body on either side of its equilibrium position is called
A. frequency
B. amplitude
C. displacement
D. time period

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