Question

Choose the correct answer from the alternatives given.
A charged particle oscillates about its mean equilibrium position with a frequency of ${10}^9$ Hz. The frequency of electromagnetic waves produced by the oscillator will be

• A. ${10}^{6}Hz$
• B. ${10}^{7}Hz$
• C. ${10}^{8}Hz$
• D. ${10}^{9}Hz$

Answer 1

The correct option is D ${10}^{9}Hz$

When a charge particle oscillates, it constitutes Electric Field $E$ and Magnetic

Field $B$ with it, whose magnitude at a point also oscillate with the frequency

of oscillation of the charged particle.

Hence the frequency of the electromagnetic wave is same as the frequency of the

charged particle which is ${10}^{9}Hz$

Option $\text{D}$ is the correct answer