Answer Happy

A light ray in the core (n = 1.40) of a cylindrical opticalfiber is incident on the cladding. A ray is transmitted through thecladding (n = 1.20) and into the air. The emerging ray makes anangle θ2 = 2.90° with the outside surface of the cladding. Whatangle θ1 did the ray in the core make with the axis?
A light ray in the core (n = 1.40) of a cylindrical optical fiber is incident on the cladding. A ray is transmitted through the cladding (n = 1.20) and into the air. The emerging ray makes an angle 02 = 2.90° with the outside surface of the cladding. What angle 8₁ did the ray in the core make with the axis? Air Axis- Cladding Core