physics
posted by Lauren .
Unpolarized light passes through six successive Polaroid sheets each of whose axis makes a 59 degree angle with the previous one.
What is the intensity of the transmitted beam, I/Io?

After the light passes through the first Polaroid, it's intensity is 1/2Io. Now the light is polarized
After the second sheet, it is now
1/2I0*((cos(59))^2)
After the third sheet it is
1/2I0*((cos(59))^2)*((cos(59))^2)
. .
Do this up to the 6th sheet, and divide by I0 
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