Question

If $100\text{kJ}$ energy is expended in producing the electromagnetic wave then, energy carried by the wave is -

Assume ideal conditions.

• A. $10\text{kJ}$
• B. $100\text{kJ}$
• C. $100\text{J}$
• D. $10\text{J}$

Answer 1

The correct option is B $100\text{kJ}$

The energy associated with the propagating wave comes at the expense of the energy of the source.

Therefore, energy carried by the wave is $100\text{kJ}$.

Hence, option $\left(B\right)$ is the correct answer.