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A ray of light travelling through air encounters a 1.1-cm-thick sheet of glass at a 43...

A ray of light travelling through air encounters a 1.1-cm-thick sheet of glass at a 43 ∘ angle of incidence. Assume n = 1.5.

How far does the light ray travel inside the glass before emerging on the far side?

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Answer #1

Knowing the index of refraction of air and glass and the angle of incidence in air, we can use Snell’s law to determine the angle of refraction in glass.

And then use trigonometry ratio to find distance r

er From nells Lauo ATy glass I-lim t 七 (1 ) fin y 3 =(1-5) Siney Alr From .bigure , aho dose-t

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