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The tourmaline light and transmits...

The tourmaline light and transmits

A

absorbs ordinary light and transmits extra ordinary

B

absorbs extra ordinary light and transmits ordinary

C

both absorbs ordinary light and extra ordinary

D

both absorbs ordinary light and extra ordinary

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The correct Answer is:
A
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The tourmaline crystal

Two polaroids are oriented with their planes perpendicular to incident light and transmission axis making an angle of 30^(@) with each other. What fraction of incident unpolarised light transmitted?

Two polaroids are oriented with their planes perpendicular to incident light and transmission axis making an angle 45^@ with each other. Find the fraction of incident light which is transmitted.

If the angle between the pass axis of polariser and analyser is 45^(@) , write the ratio of intensities of original light and the transmitted light after passing through analyser.

A beam of unpolarised light is passed first through tourmaline crystan A and then through another tourmaline crystal B oriented so that its principal plane is parallel to that of A. The intensity of the emergent light is I. If A now rotated by 45^(@) in a plane perpendicular to the direction of the incident ray, the intensity of the emergent light will be

The amplitude of polarised light transmitted through a polariser is A. The amplitude of unpolarised light incident on it is

Unpolarised light of intensity I is incidnet of the polaroid. What will be the intensity of light transmitted by the polaroid?

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