Question # 1

In case of point source the shape of wave front is

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Circular

Spherical

Elliptical

Square

Light entering rom air glass does not change in its.

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Frequency

Wavelength

Velocity

Direction

Bending of light around the edges of an obstacle is called.

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Refraction

Polarization

Interference

Diffraction

The blue colour of sky is due to

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diffraction

Reflection

Polarization

Scattering

In red light is used as compare to blue light then fringe spacing.

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Decreases

Remain same

Increases

Becomes zero

The distance between two consecutive wave front is equal to

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One wave length

Two wave length

Half wave length

Three wave length

Hygen's principle is used for.

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Explain polarization

Locate the wave front

Find the speed of light

Find the index of refraction

Which phenomenon of light proves that light waves are transverse in nature.

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Refraction

Reflection

Diffraction

Polarization

Dark fringes are also called as

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Minima

Maxima

Wave front

Ray of light

An oil film on water surface shows colour due to.

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Diffraction

Interference

Polarization

Dispersion

Sodium chloride in a flame gives

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Green light

White light

Red light

Yellow light

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Physics English Medium Fsc Part 1 Chapter 9 Online MCQs Test MCQs With Answers

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