MCQ
स्नेल के नियमानुसार होता है।
  • $\mu=\frac{\sin i}{\sin r}$
  • B
    $\mu=\sin i+\sin r$
  • C
    $\mu=\sin i-\sin r$
  • D
    इनमें से कोई नहीं

Answer

Correct option: A.
$\mu=\frac{\sin i}{\sin r}$
a

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