Question # 1

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

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Dark

Blue

Bright

Red

Angle between ray of light and wave front is

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0 ^o

60 ^o

90 ^o

120 ^o

An oil film on water surface shows colour due to.

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Diffraction

Interference

Polarization

Dispersion

Dark fringes are also called as

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Minima

Maxima

Wave front

Ray of light

Standard metal according to Michelson's interferometer is equivalent to

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1553163.5 wave meter

3 x 108meter

15503000 meter

None of these

Bright fringes are also called as

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Minima

Maxima

Wave front

Ray of light

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

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Refraction

Polarization

Interference

Diffraction

Which one of the following can not be polarized.

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Ultra violet rays

Radio waves

T.V. Waves

Sound waves

The blue colour of sky is due to

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diffraction

Reflection

Polarization

Scattering

Interplaner distance can be determined by

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Newton's rings

Bragg's law

Diffraction pattern

Interferometer

The Bragg's equation is given by

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

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