Question # 1

Example of thin film is.

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Soap burble

convex lens

Concave lens

Glass plate

Intensity of light depend on

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Wave length

Amplitude

Velocity

Frequency

When one mirror of a Michelson interferometer is moved a distance of 0.5 mm, 2000 fringes and observed, The wavelength of light used is.

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5000 m

50000 A^o

500 cm

2000 A^o

Which one of the following can not be polarized.

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Ultra violet rays

Radio waves

T.V. Waves

Sound waves

The distinguish between transverse and longitudinal wave_______ is used.

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Refraction

Interference

Diffraction

polarization

Which is nooptically active

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Sugar

Tartaric acid

Water

Sodium chloride

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

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

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Hemoglobin

Stars

Galaxies

Stones

An oil film on water surface shows colour due to.

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Diffraction

Interference

Polarization

Dispersion

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

The centre of Newton's rings will be

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Dark

Bright

Coloured

Not visible

Dark 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

Soap film is sunlight appears coloured due to.

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Dispersion of light

Diffraction of light

Scattering of light

Interference fo light

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

Angle between ray of light and wave front is

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0 ^o

60 ^o

90 ^o

120 ^o

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