Question

The refractive index of the core of an optical fibre is μ
2 and that of the cladding is μ 1 . The angle of incidence on the face of the core so that the light ray just under goes total internal reflection at the cladding is _____.

Answer 1

Answer:

With shrub withy Udjxjcjcjcjcjjcjcjcjcjcjjchch