The amplitude of magnetic field in an electromagnetic wave propagating along y- axis is $6.0 \times 10^{- 7} T$ . The maximum value of electric field in the electromagnetic wave is

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$2 \times 10^{15} {Vm}^{- 1}$

$180 {Vm}^{- 1}$

$5 \times 10^{14} {Vm}^{- 1}$

$6.0 \times 10^{- 7} {Vm}^{- 1}$

answer is B.

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Detailed Solution

The speed of electromagnetic wave in vaccum is
$\begin{array}{l} c = \frac{E_{0}}{B_{0}} \\ ∴ E_{0} = {CB}_{0} = 3 \times 10^{8} \times 6 \times 10^{- 7} = 180 {Vm}^{- 1} \end{array}$

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