3 A ray of light passes from a denser medium to a rarer

Last updated: 6/11/2023

3 A ray of light passes from a denser medium to a rarer medium at an angle of incidence i Th reflected and refracted rays make an angle of 90 with each other The angle of reflectio and refraction are respectively r and r The critical angle is given by 1 sin tanr 2 sin cotr 3 tan sini 4 sin tanr