Question # 1

A weakly damped system has fairly

Choose an answer

sharp resonance curve

flat resonance curve

both of them

none of them

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

Choose an answer

60°

90°

120°

180°

Time period of simple pendulum is independent of

Choose an answer

length

mass

acceleration due to gravity

none of them

The natural frequency of a pendulum which is vibrating freely, depends upon its

Choose an answer

mass

length

material

all of them

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

Choose an answer

longitudinal waves

transverse waves

non-mechanical waves

none of them

In the same medium, velocity of the wave:

Choose an answer

Goes on increasing

Remains constant

Goes on decreasing

None of these

The waves which propagate out in space due to oscillation of electric and magnetic fields are known as

Choose an answer

e.m. waves

mechanical waves

sound waves

water waves

Shock absorber of the car is an example of

Choose an answer

resonance

forced oscillations

interference

damped oscillations

The principle of superposition states that

Choose an answer

The total displacement due to several waves is the sum of the displacement due to those waves acting individually

Two stationary waves superimpose to give two progressive waves

A diffraction pattern consists of many interference patterns superimposed on one another

Two progressive waves superimpose to give a stationary wave

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

Choose an answer

Longitudinal wave

Transverse wave

No vibration at all

None of them

The velocity of sound in air depends upon

Choose an answer

Density and elasticity of gas

Pressure

Wavelength

Amplitude and frequency of sound

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is

Choose an answer

Sinusoidal shape with amplitude A/3

Sinusoidal shape with amplitude A/2

Sinusoidal shape with amplitude A

Straight line

The expression for restoring force is

Choose an answer

F=ma

F=kx

F= -kx

Kx=ma

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

Choose an answer

Longitudinal progressive

Longitudinal stationary

Transverse progressive

Transverse stationary

Transverse waves can be set up:

Choose an answer

Solids

Liquids

Gases

All of them

If a simple pendulum is shifted from karachi to K-2 cliff, its time period

Choose an answer

remains the same

decreases

increases

none of them

More Classes

Other Links

ECAT Physics Chapter 8 Waves Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer