using snell's law,how incident ray is parallel to emergent ray?
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REFRACTION THROUGH A GLASS SLAB. SO THE INCIDENT RAY IS PARALLEL TO EMERGENT RAY BUT IT IS LATERALLY DISPLACED FROM IT
basarkhan:
sir using snells law hoe can we prove that.that is my queation
can i give an example
THE INCIDENT RAY IS PARALLEL TO EMERGENT RAY ..... REFRACTION- part of the light is refracted through the block and the light emerges here and continues in a straight line -EMERGENT RAY . this is the angle of incidence and this is the angle of REFRACTION
light rays r REVERSIBLE they travel exactly the same path if they are going in the opposite direction.
light rays r reversible they travel exactly the same path if they r going in the opposite direction. so if light is refracted some angle going from, say, air to glass it would refract exactly the same angle in the opposite direction going from glass to air
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When light ray incident on the glass surface it gets refracted with some particular angle this is call angle of Refraction this can be found by using Snell law. When light ray comes out from glass it is called emergent ray and at this point I point it also get refracted by same angle as it was initially refracted
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