An optical fiber consists of a core made of flint glass (? core = 1.55) surrounded by a cladding made of crown glass (? cladding= 1.28). A ray of light in air enters the fiber at an angle ?, with respect to the normal and undergoes a total internal reflection at the core-cladding interface as shown in the following figure. a)Find the critical angle ?c for the core-cladding boundary. b)Calculate the angle of incidence ?1. c) If the angle of incidence ?1 = 65°, will the ray of light undergo total internal reflection at the core-cladding interface? Explain your answer.
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Angle of Refraction
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Index of Refraction of Diamond
Diamond, the world’s hardest naturally occurring material and mineral known, is a solid form of the element carbon. The atoms are arranged in a crystal structure called diamond cubic. They exist in a huge variety of colours. Also, they are one of the best conductors of heat and have a very high melting point.
An optical fiber consists of a core made of flint glass (? core = 1.55) surrounded by a cladding made of crown glass (? cladding= 1.28). A ray of light in air enters the fiber at an angle ?, with respect to the normal and undergoes a total internal reflection at the core-cladding interface as shown in the following figure.
a)Find the critical angle ?c for the core-cladding boundary.
b)Calculate the angle of incidence ?1.
c)
If the angle of incidence ?1 = 65°, will the ray of light undergo total internal reflection at the core-cladding interface? Explain your answer.
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