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Questions  >>  CBSE XII  >>  Physics  >>  Electromagnetic waves
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Find the wave length of EM wave of frequency $ 6 \times 10^{12}\;Hz$ in free space .

$\begin{array}{1 1} 5 \times 10^{-5}m\;u.v \;rays \\ 5 \times 10^{-6}\;m\;,u.v\; rays \\ 5 \times 10^{-5}m\;I.R\;rays \\ 5 \times 10^{6}\;u.v\; rays \end{array} $

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