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An optical fiber is made of clear plastic (n = 1.50). Light travels through the fiber at angles ranging from 40° to 55°. What is the measurement of the critical angle of this fiber?
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An optical fiber is made of clear plastic (n = 1.50). Light travels through the fiber at angles ranging from 40° to 55°. What is the measurement of the critical angle of this fiber?

User Rajesh Narwal
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1 Answer

5 votes
1/sinc = 1.50
sinc =1/1.5
critical angle = sininverse(1/1.5) = 41.8
User Flora
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