1 10 cm 3 20 cm A light pipe is made of glass fibre of

Last updated: 6/11/2023

1 10 cm 3 20 cm A light pipe is made of glass fibre of refractive index 1 57 The outer covering of the pipe is made of a material of refractive index 1 36 The range of angles of incident 2 15 cm 4 25 cm rays with the axis of the pipe for which total internal reflection inside the pipe take place is nearly NCERT Pg 345 1 0 i 38 3 0 i 60 2 0 i 90 4 0 i 53