Light travels from air into an optical fiber with an index of refraction of 1.44

Question

Light travels from air into an optical fiber with an index of refraction of 1.44. (a) In which direction does the light bend? (b) If the angle of incidence on the end of the fiber is 22degree, what is the angle of refraction inside The fiber? (15 degree ) A catfish is 2.0 m below the surface of a smooth lake; (a) what is the diameter of the cancel on the surface through which the fish can see the world outside the water? (4.56m) (b) If the fish descends. does the diameter of the circle increase, decrease, or remain the same? (check an algebraic expression)

Explanation / Answer

a) towards normal

b)sin 22= 1.44 sin theta

theta= 15.07 degrees

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