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Vertically polarized light from a HeNe laser passes through a linear polarizer

tiziovolpe
in Homework Help

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Q: Vertically polarized light from a helium neon laser passes through a linear polarizer with its axis of polarization oriented 15° from the vertical axis. If a second polarizer is placed in the beam after the first polarizer with its axis oriented at 45° from the vertical axis:

(a) How much light is transmitted?

I think that this is Malus's law : I = Io cos2 (15o) Io cos2 (30o) = Io 0.6998 or 69.98% Io

(b) What will be the polarization angle of the transmitted light?

This is the part that I am unsure of and need help. I think that it is linearly polarized at an angle of 45o .

 

Any help will be greatly appreciated! Thank you!

tizio volpe

 

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