Three polarizing filters are stacked, with the polarizing axis of the second and third filters at angles of 28.4^\circ and 59.8^\circ, respectively,...

Three polarizing filters are stacked, with the polarizing axis of the second and third filters at angles of 28.4^circ and 59.8^circ, respectively, to that of the first. If unpolarized light is incident on the stack, the light has an intensity of 72.5 W/cm^2 after it passes through the stack.