Question # 1

A wave which consists of a single, non repetitive disturbance is called a

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Continous wave

Pulse

Longitudinal wave

Transverse wave

A sound wave is an example of

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Transverse wave

longitudinal waves

Hair wave

Stationary wave

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

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A trough becomes a crest

There is no phase shift

There is phase shift of 360 ^o

A crest remains a crest

The wave phenomenon that classifies light as a transverse wave is.

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Polarization

Diffraction

Interference

Refraction

For polarization , the direction of oscillation has to be perpendicular to the direction of travel sound waves are longitudinal waves so they cannot be.

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Reflected

Deflected

Diffracted

polarized

Newton proposed his corpuscular theory on the basis on

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Newton's rings

Polarization

Dispersion of white light

Rectilinear property of light

Light waves can be polarized because they

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have short wavelength

Have high frequency

Can be reflected

Are transverse

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.

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Refraction

Diffraction

Polarization

Dispersion

Distance between two consecutive nodes or antinodes is equal to.

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Lamda /4

Lamda

Lamda /2

2 lamda

Which of the following cannot be polarized.

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Ultraviolet rays

Radio waves

T.V waves

Sound waves

Two sources of sound are said to be in resonance when.

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They look like similar

They produce sound of same frequency

They are enacted by the same agent

They differ from each other

Mostly widely used types of gas LASER are.

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Neon

Argon ion

Helium

All of these

Tuning fork is a source of.

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Heat

Energy

Light

Sound

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

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9:4

2:3

3:2

4:9

The length of piano wire is 1 m and mass is 20 g and it is stretched by a fore of 200 N the fundamental frequency of sound waves produced by the piano will be

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50 Hz

100 Hz

150 HZ

250 Hz

On which characteristics the loudness of sound pends upon.

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Pitch

Speed

Wavelength

Amplitude

Hearing damage is possible at sound pressure of

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0 dB

50 dB

130 dB

195 dB

Which of the following is nearly monochromatic

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Light from sodium lamp

Light from candle

Light from gas lamp

Light from sun

The amplitude of sound wave determines its

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Pitch

Loudness

Reverberation

Interference

Which of the following refers to the distance from crest to crest of a wave.

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Frequency

Wavelength

Amplitude

Period

Which of the following phenomenon occurs when two sound waves of equal amplitude and different frequencies travel through the same region.

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Doppler's effect

Resonance

Beats

Echo

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PPSC Physics Chapter 5 Waves and Wave Properties of Light MCQs With Answers

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