Question

The ratio of average electric energy density and total average energy density of electromagnetic wave is:

• A. 2
• B. 3
• C. $\frac{1}{2}$
• D. 1

Answer 1

Answer: (C)

$\frac{1}{2}$

Answer 2

<uE​>=<uB​>=21​<utotal ​>
So ⟨utotal ​⟩⟨uE​⟩​=21​