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Find the amplitude of the electric field...

Find the amplitude of the electric field in a parallel bean of light of intensity `2.0 W m^-2.`

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To find the amplitude of the electric field in a parallel beam of light with an intensity of \(2.0 \, \text{W/m}^2\), we can use the relationship between intensity \(I\) and the electric field amplitude \(E_0\). ### Step-by-Step Solution: 1. **Understand the relationship between intensity and electric field**: The intensity \(I\) of an electromagnetic wave is related to the amplitude of the electric field \(E_0\) by the formula: \[ I = \frac{1}{2} \epsilon_0 c E_0^2 ...
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