Why does a ray of light bend towards normal as it passes from air to glass ?
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As `mu = (sin i)/(sin r) = (c )/(v)`, speed of light in glass `(v)` lt speed of light in air `(c )` `:. sin r lt sin i`. Hence a ray of light bends towards normal as it passes from air to glass.
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In going from a rarer to a denser medium, a ray of light bends towards normal. And in going from a denser to a rarer medium, a ray of light bends away from normal. Explain why.
Why does a ray of light bend when it travels from one medium to another.
Rays of light get refracted while passing from air to glass because
