Question

what is the maximum angle of incidence on the core for which
total internal reflection takes place inside the core.​

Answer 1

Explanation:

• For incident angles greater than 48,8° total internal reflection will occur. For incident angles equal to 48,8° refraction will occur at 90°.

Answer 2

Maximum angle of incidence on the core for which total internal reflection takes place inside the core is 48.8°.

• Total internal reflection occurs when a ray of light from a medium with a higher index of refraction approaches the other medium at an angle of incidence larger than the critical angle at the boundary between two transparent media.