Please evaluate the right solution of the following question
Question- An EM wave is normally incident from air (n=1) to a piece of glass with index of refraction n = 1.45.
Part 1- Find the power reflectance from the front surface of the glass slide.
Part 2- Find the power reflectance from the back surface of the glass slide.
I need help to calculate the power reflectance from surface of glass.