Compute the each part of given question:
Question: A beam of light leaves a polarizer with an intensity of 760 W/m2. It encounters another polarizer rotated 36° relative to the first.
Part I: Calculate the intensity of the outgoing light.
Part II: Next the light passes through a polarizer rotated 10° relative to the first polarizer. Calculate the intensity of the outgoing light.
Part III: Since the intensity has decreased, the energy of the beam must have decreased. So, where did the energy go?
If possible just a brief explanation how you got the answer?