FYKOS Year 29 Series 2 Problem 4 — mirrorception · FYKOS 29 #29.2.4
Physics · optics
Problem
Consider an optical system composed of three semitransparent mirrors placed behind each other along one axis. Every mirror by itself reflects half of incident light and lets the other half pass. Determine what fraction of light passes through the system of mirrors.
Bonus: Solve the problem for n such mirrors.