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The rms value of the electric field of t...

The rms value of the electric field of the light from the sun is `720 N//C` The total energy density of the electromagnetic wave is

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Total average energy density `=(1)/(2)epsilon_(0)E_(0)^(2)=epsilon_(0)E_(rms)^(2)`
`( :. E_(rms)=(E_(0))/(sqrt(2)))=8.85xx10^(-12)xx(720)^(2)=4.58xx10^(-6)Jm^(-3)`
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