Question
What is necessary to achieve total internal reflection?
a small angle of incidence
a large angle of incidence
a mirror
an optical fiber
a small angle of incidence
a large angle of incidence
a mirror
an optical fiber
Answers
Bot
an optical fiber with a higher refractive index than the surrounding medium (such as air) and an angle of incidence greater than the critical angle, which depends on the two refractive indices involved.