Miscellaneous

Question 1:
Two polaroids are placed in the path of unpolarised beam of intensity I0 such that no light is emitted from the second polarioid. If a third polaroid whose polarization axis makes an angle θ with the polarization axis of first polaroid, is placed between these polaroids then the intensity of light emerging from the last polaroid will be :-

\[\frac{I_{0}}{8}sin^{2} 2\theta\]

\[\frac{I_{0}}{4}sin^{2} 2\theta\]

\[\frac{I_{0}}{2}cos^{4} \theta\]

\[I_{0}cos^{4} \theta\]

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No solution provided for this question.

Question 2:
Two polaroids are placed in the path of unpolarized beam of intensity I0 such that no light is emitted from the second polaroid. If a third polaroid whose polarization axis makes an angle θ with the polarization axis of first polaroid, is placed between these polaroids then the intensity of light emerging from the last polaroid will be :

\[\left( \frac{I_{0}}{8} \right)sin^{2} 2\theta\]

\[\left( \frac{I_{0}}{4} \right)sin^{2} 2\theta\]

\[\left( \frac{I_{0}}{2} \right)cos^{2} \theta\]

\[I_{0}cos^{4} \theta\]

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No solution provided for this question.

Question 3:
A light has amplitude A and angle between analyser and polariser is 60o. Light is transmitted by analyser has amplitude.

A√2

A/√2

√3 A/2

A/2

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No solution provided for this question.

Question 4:
Two Nicols are oriented with their principal planes making an angle of 60°. The percentage of incident unpolarized light which passes through the system is :

50%

100%

12.5%

37.5%

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No solution provided for this question.

Question 5:
The graph showing the dependence of intensity of transmitted light on the angle between polariser and analyser, is :

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No solution provided for this question.