ABC is a right angled prism of transparent material of

Last updated: 6/24/2023

ABC is a right angled prism of transparent material of refractive index such that ZB is smaller than ZA as shown in figure A ray of light incident mormally on the face AB emerges parallel to the ncident ray after two internal reflections then the minimum value of u is 1 3 1 sin A sin A C 2 sin B 4 sin 6 sin B