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Reflection

Sunlight can ...

Question

Sunlight can undergo internal reflection if it enters from :

A

glass to air

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B

air to glass

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C

air to water

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D

water to glass

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Solution

The correct option is A glass to air
Internal reflection can only occur when light moves from denser medium to rarer medium.

$μ_{a i r} < μ_{w a t e r} < μ_{g l a s s}$

So internal reflection only occur in glass to air

Answer. A) glass to air

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