Circular Mirror with Liquid - Refractive Index · CAP 2017 #B1
Physics · optics
Problem
A circular mirror of radius R = 20 cm and center C is filled with a transparent liquid up to 1 cm of height. What is the refractive index of this liquid if the image of point A falls on itself? You may use the small angle approximation: tan(θ) = sin(θ) = θ for θ ≪ 1.