Question # 1

Ultrasonic sound waves

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Can be heard by a normal human ear

Can be heard with the help of hearing apparatus

Can be heard with the help of microphone

cannot be heard

the amplitude of a wave indicates

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Wavelength

Frequency

Intensity of wave

Nature of wave

A monochromatic light beam when passed through a prism is.

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Diffracted

Devlated

Polarized

Dispersed

Hygen's principle states that

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Light travels in straight line

Light travels in electromagetic waves

All points of primary wave front are source of secondary wavelets

Light has dual nature

interference and diffraction of light support the

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Wave nature of light

Transverse nature of light waves

Quantum nature of light

Electromagnetic nature of light

In the experiment of production od x rays electrons are accelerated towards the anode by

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Thermionic emission

Potential difference

Breaking potential

Cut of currrent

When white light is incident on a diffraction grating, the light that will eb deviated from central image will be.

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White

Yellow

Red

Blue

Plane polarized light can be produced by

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Reflection

Refraction

Scattering of light

All of these

Laser light is considered to be coherent because it consists of.

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Many wavelengths

Uncoordinated wavelengths

Coordinated waves of exactly the same wavelength

Divergent beams

Light wave are

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Longitudinal

Transverse

Sometimes longitudinal and sometimes transverse

Neither longitudinal nor transverse

The central ring is bright in case of Newton's rigs produced by

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Reflection

Wedges

Refraction

Transmission

The amplitude of sound wave determines its

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Pitch

Loudness

Reverberation

Interference

A light beam is said to be plane polarized when

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its vibrations are restricted to only one plane

Its vibrations are very strong in one plane

Its vibrations take place in any plane

Its vibrations are very weak in one plane

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

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Phonon

Photon

Neutron

Proton

Which are different types of emission spectrum

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Continues spectrum

Line spectrum

Band spectrum

all of the above

A sonometer or audiometer is a device based on the principle of.

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Resonance

Beats

Overtones

Harmonics

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

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Frequency

Wavelength

Amplitude

Period

Plane polarized light can be produce dby

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Simple reflection

Double refrraction

Scattering of light

All of these

Sound wave in air are

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Longitudinal waves

Transvers waves

Electromagnetic waves

Matter waves

The pitch of sound a determined by its

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Speed

Frequency

Direction

Number of beats

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

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