Explain how the incident ray is parallel to emergent ray when light ray passes through rectangular glass slab.
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When light rays travelling through air enters glass slab, they get refracted and bend towards the normal. ... Since the ray of light I know travelling from denser medium to rarer medium, it bends away from the normal. In this case incident ray and the emergent ray are parallel to each other.
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5
Answer:
Please see attached.
here i = e that is why rays are parallel
it is only when incident ray and emergent ray have same medium, other wise not
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