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gavmur [86]
3 years ago
7

Refraction occurs through a glass slab why​

Physics
1 answer:
masha68 [24]3 years ago
8 0

Answer:

One when it enters the glass slab from air and second time when it enters the air through glass slab. When light rays travelling through air enters glass slab, they get refracted and bend towards the normal. Now the direction of refracted ray changes again when it comes out of the glass slab into air.

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