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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

A

`3.3xx10^(-3)J//m^(3)`

B

`4.58xx10^(-6)J//m^(3)`

C

`6.37xx10^(-9)J//m^(3)`

D

`81.35xx10^(-12)J//m^(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
`U_(av)=(1)/(2)epsilon_(0)E_(max)^(2)`
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