Question # 1

What is an elementary particle, the basic unit of light and all other form of electromagnetic radiation.

Choose an answer

Phonon

Photon

Neutron

Proton

A thin layer of oil the surface of water looks coloured due to.

Choose an answer

Pillarization of light

Different elements present in the oil

Interference of light

Transmission of light

A wave reflected from the boundary of a denser medium will have phase change

Choose an answer

45 ^o

60^o

90 ^o

180 ^o

X-rays are a part of electromagnetic spectrum and are characterized by frequencies higher that those of.

Choose an answer

Infrared radiation

Ultraviolet radiation

Far ultraviolet radiation

Far infrared radiation

The fact that the edge of a shadow formed by a point source of light shining on an object is not sharp is an example of.

Choose an answer

Refraction

Diffraction

Polarization

Dispersion

Longitudinal waves cannot be

Choose an answer

Reflected

Difracted

Dispersed

Polarized

The amplitude of sound wave determines its

Choose an answer

Pitch

Loudness

Reverberation

Interference

Which of the following gives discrete emission spectrum.

Choose an answer

Sun

Candle

Incandescent filament

Mercury vapour lamp

Increase in velocity of sound in air for 1 ^oC rise in temperature is.

Choose an answer

0.61 m s-1

1.61 m s-1

2.00 m s-1

61.0 m s-1

The ratio of intensities of two sound waves is 4 : 9 what will be the ratio of their amplitudes.

Choose an answer

9:4

2:3

3:2

4:9

Which one of the following cannot be polarized.

Choose an answer

Radiowave

Ultraviolet rays

X- rays

Sound waves

A pendulum vibrates with a time period of 1 s which range of sound is produced by it

Choose an answer

Audible

Infrasonic

Ultrasonci

Super sonic

The energy following per second through a unit area held perpendicular to the direction of wave is.

Choose an answer

The loudness of the sound waves

The pitch of the sound waves

The intensity level of sound waves

The intensity of sound waves

Sound of frequencies lower than 20 Hz are called.

Choose an answer

Supersonics

Infra sonics

Ultrasonic

Audible sound waves

What is the emission of light by a substance that has observed light or others electromagnetic radiations of a difference wavelength.

Choose an answer

Fluorescence

Illuminance

Luminance

Incandescence

The wavelength of Pascha series lies is the

Choose an answer

Visible region

Ultraviolet region

Infrared region

Invisible region

The loudness of a sound depends on its

Choose an answer

Wavelength

Frequency

Wave amplitude

Regularity

Light waves can be polarized because they

Choose an answer

have short wavelength

Have high frequency

Can be reflected

Are transverse

A wave that remains in a constant position is called.

Choose an answer

Standing wave

Transvers wave

Shock wave

Longitudinal wave

According to Huygen's principle

Choose an answer

Light bends round corners

Light travels in a straight line

All points on primary wave front are considered centre of distances

Light has wave nature

On loading the prong of a tuning fork with wax. Its frequency.

Choose an answer

Increases

Decreases

Remain unchanged

May increase or decrease

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