Science, asked by chiragverma, 1 year ago

plz give me reason and answer of these questions?

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Answered by arthi2

1

1st ans is 60 degrees

chiragverma: plz I want reason also

arthi2: when it reflects the degree is doubled

arthi2: in all the cases

chiragverma: oo thanks

arthi2: so now I guess u can answer

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