Question: do it now. light from a smooth surface, whe on is the bending of light when it e medium to another. s law is a
do it now.

light from a smooth surface, whe on is the bending of light when it e medium to another. s law is a very important law whic at light ray always takes the path e least time. This law is used to de aw for refraction, which is the thi ction
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