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Why are the incident and emergent …

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Why are the incident and emergent rays parallel to each other in case of rectangular glass slab?

Posted by Palak Prajapati 5 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 3 months ago

In a rectangular glass slab, the emergent Ray is parallel to the direction of the incident ray. The extent of bending of the ray of light at the opposite parallel faces of the rectangular slab is equal and opposite. This is why the rat emerges parallel to the incident ray. This is because in the case of the glass slab the surfaces (on which light is incident and emerging) are opposite and parallel to each other. Whereas, in the case of a glass prism the surfaces are inclined to each other at some angle.

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Posted by Pandey Ji 5 months, 3 weeks ago

CBSE > Class 10 > Science