Physics, asked by shaikh1173, 1 year ago

answer the question please ​

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Answered by beinghuman32
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because incident ray get refracted in same amount as that the refracted ray gets refracted(when it leaves the rectangular slab) due to this angle of incidence equals to angle of emergence..due to this incident ray and emergent ray are parallel
shaikh1173: thanks for your kindness help
beinghuman32: wc
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