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Questions  >>  CBSE XII  >>  Physics  >>  Electromagnetic waves
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In a plane electromagnetic wave, the electric field oscillates sinusoidal at a frequency of $2.0 \times 10^{10}\;Hz$ and amplitude $48 vm^{-1}$. What is the wavelength of the wave ?

$\begin{array}{1 1} 1.5 \times 10^{-2} m \\ 1.5 \times 10^{-3} m \\ 1.5 \times 10^{-2} m \\ 1.5 \times 10^{-4} m \end{array} $

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