An optic fiber is made of clear plastic with index of refraction of 1.50, surrounded by air. For what angles of incidence θ will light remain completely within the plastic fiber? A.θ < 38.3° B.θ < 41.8° C.θ > 38.3° D.θ > 21.1° E.θ > 41.8°

An optic fiber is made of clear plastic with index of refraction of 1.50, surrounded by air. For what angles of incidence θ will light remain completely within the plastic fiber? A.θ < 38.3° B.θ < 41.8° C.θ > 38.3° D.θ > 21.1° E.θ > 41.8°

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter38: Refraction And Images Formed By Refraction

Section: Chapter Questions

Problem 104PQ

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Concept explainers

Dispersion of White Light

Snell’s law is a formula that gives a relation between the angle of incidence and angle of refraction and is given as:

Question

An optic fiber is made of clear plastic with index of refraction of 1.50, surrounded
by air. For what angles of incidence θ will light remain completely within the plastic
fiber?

A.θ < 38.3°
B.θ < 41.8°
C.θ > 38.3°
D.θ > 21.1°
E.θ > 41.8°

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