JEE Main 2014 Physics question

Physics Electromagnetic Waves JEE Main 2014

During the propagation of electromagnetic wave in a particular medium :-

(1)Electric energy density is double of the magnetic energy density
(2)Electric energy density is half of the magnetic energy density
(3)Electric energy density is equal to the magnetic energy densityCorrect
(4)Both electric and magnetic energy densities are zero

Answer: (3)

Solution

In an electromagnetic wave , so and $ = = =

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Question ID VK-104276