Vertically polarized light that has an intensity of 430 W/m 2 is incident on two

Question

Vertically polarized light that has an intensity of 430 W/m2 is incident on two polarizing filters. The first filter is oriented 30° from the vertical while the second filter is oriented 75° from the vertical. Predict the intensity and polarization of the light that emerges from the second filter. (Assume both angles are measured in the same direction with respect to the vertical.)
W/m2

Please show work, answer shouldnt be in the thousands. Should be around 169 i think. If the value is 450, the answer is 169. Use that as help for checking. High points and rating for getting it quick and accurate! GOODLUCK

Explanation / Answer

intensity Io=430 W/m^2

theta1=30 degrees,

theta2=75 degrees

I1=Io*cos^2(theta1)

I1=430*cos^2(30)

I1=322.5 W/m^2

now,

I2=I1*cos^2(thte2-theta1)

I2=322.5*cos^2(75-30)

I2=161.25 W/m^2   <------------

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