Question # 1

Fringe spacing in Young's double slit experiment increases due to increase in.

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Slit separation

Wave length

Order of Fringe

Frequency of source

Michelson's interferometer can be used ot find the

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Velocity of light

Wavelength of light

Velocity of sound

Wavelength of sound

The Bragg's equation is given by

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Sodium chloride in a flame gives

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Green light

White light

Red light

Yellow light

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

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Increase

Decreases

Remain same

Becomes zero

X-ray diffraction has been very useful in determining the structure of

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Hemoglobin

Stars

Galaxies

Stones

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

Young in 1801 performed experiment for the first time about

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Interference

Diffraction

Polarization

Particle nature of light

Light entering rom air glass does not change in its.

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Frequency

Wavelength

Velocity

Direction

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

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Plane

spherical

Circular

Eliptical

When newton ring are seen through the transmitted light, then central spot is.

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Dark

Blue

Bright

Red

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

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