Physics, asked by takshthakkar2223tt, 1 year ago

what is the answer of these question =n21 x n20

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Answered by mgiribabu1
1

n₂₁ X n₁₂ = (speed of light in medium 2/speed of light in medium 1) X (Speed of light in medium 1/Speed of light in medium 2)

             = 1

The correct answer id "d"

takshthakkar2223tt: correct
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