Question # 1

A sound wave is an example of

Choose an answer

Transverse wave

longitudinal waves

Hair wave

Stationary wave

Two tuning forks have same natural frequency One of them is now loaded with wax. When both the forks are sounded together the will

Choose an answer

Produce interference

Produce vibrations

Remain in resonance

Produce beats

Blue colour of sky is due to.

Choose an answer

Diffraction

Reflection

Polarization

Scattering

When a sound source moves towards a stationary observer there is.

Choose an answer

An apparent increase in wavelength

An apparent increase in frequency

an apparent decreases in frequency

A change in the velocity of the sound

If the wave length of a wire is 1 cm and its period is 0.02 s, the velocity of the wave will be

Choose an answer

20 cm s-1

50 cm s-1

60 cm s-1

100 cm s-1

When transvers wave travelling in a less dense medium is reflected at an interface will a more dense medium.

Choose an answer

A trough becomes a crest

There is no phase shift

There is phase shift of 360 ^o

A crest remains a crest

A fringe is a path of.

Choose an answer

Constant amplitude

Constant phase

Same wavelength

Constant frequency

The shape of wave front depends on

Choose an answer

Density of medium

Shape of medium

Viscosity of medium

Length of medium

The dispersive power of a grating is

Choose an answer

Light used

Separation of lines

Frequency of light used

Independent of wavelength

LASER is a device for

Choose an answer

Producing a beam of white light

Producing a beam of monochromatic and coherent light

Producing a beam of high intensity incoherent light.

Producing highly penetrating's X -rays

Interference fringe spacing depends on

Choose an answer

The wavelength of light used

The distance screen from the coherent sources

Separation between the sources

All of the above

The interference between two sounds of slightly differed frequency is

Choose an answer

shock wave

Beats

Sonic boom

Doppler's effect

A longitudinal sinusoidal wave has a wavelength of 1 cm and a period of 2s. Its wave velocity is.

Choose an answer

50 cm s-1

0.00t m s-1

100 cm s-1

5 m s-1

Light from the sun reaches the earth in

Choose an answer

Spherical wave fronts

Cylindrical wave fronts

Plane wave fronts

Packets

The amplitude of a vibrating body at resonance place in vacuum is.

Choose an answer

zero

Maximum

Minimum

Infinite

The heat frequency is the

Choose an answer

Sum of the two frequenceis

Produce of the two frequency

Difference of the two frequencies

Ratio of the two frequencies

The unit of intensity level is.

Choose an answer

Watt

Joule

Bel

Sabin

In a diffraction pattern, the width of any fringe

Choose an answer

Is directly proportional to slit width

Is inversely proportional to slit with

Has no dependence on slit width

Is zero

Which of the following is nearly monochromatic

Choose an answer

Light from sodium lamp

Light from candle

Light from gas lamp

Light from sun

Beats occur due to

Choose an answer

Reflection

Refraction

interference

Diffraction

For how long the sensation of sound persists in our brain.

Choose an answer

0.1 s

0.2 s

0.3 s

0.4 s

More Classes

Other Links

PPSC Physics Chapter 5 Waves and Wave Properties of Light 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

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer