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Unpolarised light falls first on polariz...

Unpolarised light falls first on polarizer Pan then on analyzer A. If the intensity o transmitted light from the analyzer is `(1)/(8)` th the incident unpolarized light what will be th angle between optic axis of P and A?

A

`45^(@)`

B

`30^(@)`

C

`0^(@)`

D

`60^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
`I=(I_(0))/(2) cos^(2) theta`
`(I_(0))/(8)=(I_(0))/(2)cos^(2) theta " " (1)/(2)=cos theta`
`(1)/(4)=cos^(2) theta " " :. theta=60^(@)`
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KUMAR PRAKASHAN-WAVE OPTICS-SECTION-D (MULTIPLCE CHOICE QUESTIONS (MCQS)) (MCQS FROM DARPAN BASED ON TEXTBOOK)
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  8. A plane polarized light is incident normally on a tourmaline plate. It...

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  14. In Young's double slit experiment if the distance between two slits is...

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  17. Which of the following is wrong for interference fringes?

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  19. In a Young double slit experiment, the width of the source slit is inc...

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  20. V(radial) is considered…….when the source moves away from the observer...

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