Fig 2 41 shows a longitudinal cross section of an opti cal

Last updated: 6/13/2023

Fig 2 41 shows a longitudinal cross section of an opti cal fibre made of glass of refractive index 1 68 The pipe is coated with a material of refractive index 1 44 What is the range of the angles of the incident rays with the axis of the pipe for which total reflection inside the fibre can take place 1 00 Fig 2 41 1 44 1 68