Easy MCQ +4 / -1 PYQ · JEE Mains 2021

For an electromagnetic wave travelling in free space, the relation between average energy densities due to electric (Ue) and magnetic (Um) fields is :

  1. A U<sub>e</sub> = U<sub>m</sub> Correct answer
  2. B U<sub>e</sub> $\ne$ U<sub>m</sub>
  3. C U<sub>e</sub> &lt; U<sub>m</sub>
  4. D U<sub>e</sub> &gt; U<sub>m</sub>

Solution

In EMW, average energy density due to electric field (U<sub>e</sub>) and magnetic field (U<sub>m</sub>) is same.

About this question

Subject: Physics · Chapter: Electromagnetic Waves · Topic: Properties of EM Waves

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