A beam of unpolarized light of intensity $I_0$ is passed through a polaroid $A$ , then through another polaroid $B$ , oriented at $60^{\circ}$ and finally through another polaroid $C$ , oriented at $45^{\circ}$ relative to $B$ as shown. The intensity of emergent light is:

Question

A beam of unpolarized light of intensity

I_0

is passed through a polaroid

A

, then through another polaroid

B

, oriented at

60^{\circ}

and finally through another polaroid

C

, oriented at

45^{\circ}

relative to

B

as shown. The intensity of emergent light is: A beam of unpolarized light of intensity I_0 is passed through a polaroid A , then through another polaroid B ,

A beam of unpolarized light of intensity I_0 is passed through a polaroid A , then through another polaroid B ,

Quantrex Academy · Accepted Answer

Correct answer: A. (I_0)/(16)

I_1=(I_0)/(2) I_B=(I_1) ^2 60^ =(I_0)/(2)((1)/(2))^2=(I_0)/(8) I_C=I_B ^2 45^ =(I_0)/(8) ×( 1 2 )^2=(I_0)/(16)

A beam of unpolarized light of intensity I_0 is passed through a...

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