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Refraction at Planar Surface

When the ligh...

Question

When the light ray is ___________ to the boundary between two medium, light does not bend.

A

normal

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B

parallel

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C

oblique

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D

curved

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Solution

The correct option is A
normal

(i)

Light falls obliquely $(i \neq 0^{\circ})$

(ii)

When a light ray falls on the surface normally, then refraction occurs but it does not bend the light. Only, the velocity in the second medium changes.

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