Why light goes undeviated when it passes through optical centre?

When light passes through optical centre that mean it passes through very thin glass slab, so the lateral displacement tends to zero. That means light goes undeviated.

Because we know as thin the glass slab is lateral displacement become zero, and if glass slab is very thin the distance between incident ray and refracted Ray become zero( lateral displacement).

And the incident ray and refracted Ray are the same(coincide over each other).

June 06, 2022 Tags : JEE , light , Optics , Physics

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