Question # 1

The property of bending of light around obstacles is

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Interference

Diffraction

Polarization

Superposition

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

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Refraction

Reflection

Diffraction

Polarization

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

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Increase

Decreases

Remain same

Becomes zero

Interplaner distance can be determined by

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Newton's rings

Bragg's law

Diffraction pattern

Interferometer

A ray of light is a line

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Parallel to wave front

Normal to wave front

Anti-parallel to wave

Any one of these

Which is nooptically active

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Sugar

Tartaric acid

Water

Sodium chloride

The fringe spacing in a double slit experiment can be increased by decreasing.

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Wavelength of light

Width of slits

Slit separation

Distance between the slits and the screen

The Bragg's equation is given by

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Newton's rings are formed due to phenomenon of.

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Interference

Dispersion

Diffraction

Polarization

Dark fringes are also called as

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Minima

Maxima

Wave front

Ray of light

In case of point source the shape of wave front is

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Circular

Spherical

Elliptical

Square

The fringe spacing increases if we use.

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Yellow light

Green lgiht

Blue light

Red light

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

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

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Refraction

Polarization

Interference

Diffraction

In case of point source the shape of wave front is.

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Plane

spherical

Circular

Eliptical

A ray of light shows the direction of propagation of light It is line which is.

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Normal to the wave front

Parallax to the wave front

Opposite to the wave front

Equal to the wave front

Oil film floating on water exhibits colours due to

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Interference

Diffraction

Polarization

All of these

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Physics Fsc Part 1 Chapter 9 Online Test MCQs With Answers

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