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Physics-

General

Easy

Question

The amplitude of magnetic field at a region carried by an electromagnetic wave is 0.1mT The intensity of wave is

$4 μ {W m}^{- 2}$
$1.2 {W m}^{- 2}$
$4 {W m}^{- 2}$
$1.2 μ {W m}^{- 2}$

The correct answer is: $1.2 W m to the power of negative 2 end exponent$

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