A) Find the intensity of light emerging from the first filter. B) Find the inten

Question

A)Find the intensity of light emerging from the first filter.

B)Find the intensity of light emerging from the second filter.

C)Find the intensity of light emerging from the third filter.
D)If the second filter is removed, what is the intensity of the light emerging from the first filter?

E)If the second filter is removed, what is the intensity of the light emerging from the last filter?

For I_1 I used I= I_max Cos^2( phi)

I got I_1= I_0 but it says is wrong. And I'm pretty sure cos (0) = 1 Maybe I'm getting confuse. Also, How should I put the answere here?

Explanation / Answer

A) Io/2 = 0.5 Io B) Ia cos60*cos60 = 0.5Io * cos60*cos60 = 0.125 Io C) Ib cos(90-60)*cos(90-60) = 0.09375 Io D) It is Ia = Io/2 E) It is Id*(cos90)^2 = 0

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