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Snell's Law and Refractive Index

When light tr...

Question

When light travels from an optically denser medium to a rarer medium.
(a) it bends away from the normal.
(b) it bends towards the normal.
(c) it is undeviated.
(d) it is laterally displaced.

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Solution

(a) it bends away from the normal
When light travels from an optically denser to a rarer medium, it bends away from the normal.

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Q. When light ray travels from a rarer medium to a denser medium, it bends _______ the normal.

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