Question

Consider the optical fiber made of a single core. The index of refraction of the material of the optical fiber is 1.3, and the index of refraction of the air is 1.0. Light strikes at one end and it passes through the interface as shown . The angle of incidence θ₁ is:

10 e air Section of an optical fiber

A.) 42⁰

B.) 56⁰

C.) 40⁰

D.) 50⁰

Answer 1

from snell's lan- 1.3 sinoi sinor sinol sinon =1-3-(1) and singo-02) = = cos O2 = ㅗ 1.3 singo ya =) Az = 39.79 Than sina = 1.3x sin(39.71) 0 = 56 (B)