An Optical Fiber Made of Glass with an Index of Refraction

question 18

Multiple Choice

An optical fiber made of glass with an index of refraction 1.50 that is coated with a material with index of refraction 1.30 has a critical angle of

• A)90°.
• B)41.8°.
• C)60.0°.
• D)50.2°.
• E)This combination will not work.

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