When a plane electromagnetic wave travels in vacuum, the average electric energy density is given by (here E_(0) is the amplitude of the electric field of the wave) :

When a plane electromagnetic wave travels in vacuum, the average el

1.	When a plane electromagnetic wave travels in vacuum, the average electric energy density is given by (here E_(0) is the amplitude of the electric field of the wave) :
Answer» `(1)/(4) epsilon_(0)E_(0)^(2)` `(1)/(2) epsilon_(0)E_(0)^(2)` `2 epsilon_(0)E_(0)^(2)` `4 epsilon_(0)E_(0)^(2)` ANSWER :A

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When a plane electromagnetic wave travels in vacuum,﻿ the average electric energy density is given by (here﻿ E_(0) is the amplitude of the electric field of the wave) :

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When a plane electromagnetic wave travels in vacuum, the average electric energy density is given by (here E_(0) is the amplitude of the electric field of the wave) :