Question
Fri November 18, 2011 By:

How does a light ray bend when it travels from 1.a denser to rarer medium? 2.a rarer to dender medium?

Expert Reply
Fri November 18, 2011
When a light ray travels from a denser to a rarer medium, it bends away from the normal; and when a light ray travels from a rarer to a denser medium, it bends towards the normal.
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