Question

The source of electromagnetic waves can be a charge -

• A. falling freely in an electric field.
• B. moving in a circular orbit with constant speed.
• C. Both options $\left(A\right)$ and $\left(B\right)$
• D. None of these

Answer 1

The correct option is C Both options $\left(A\right)$ and $\left(B\right)$

An accelerated charge particle is the source of an electromagnetic wave.

A charge particle falling in an electric field is acted by electric force, hence it is accelerated.

Also, a charge particle moving in a circular orbit with constant speed is in accelerated motion as its direction changes at every instant.

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