An electron vibrating to and fro 1000 times per second generates an electromagnetic wave having a
A)period of 1000 s.
B)speed of 1000 m/s.
C)wavelength of 1000 m.
D)frequency of 1000 Hz.

Question

Quizplus · Accepted Answer

The frequency of the electromagnetic wave generated by the vibrating electron is 1000 Hz, as it is directly proportional to the frequency of the vibrating electron. Therefore, option D is the correct answer. 
Option A is incorrect because the period of the wave would be the reciprocal of the frequency calculated as 1/1000 seconds. Option B is incorrect because the speed of the electromagnetic wave generated by the electron is the speed of light, which is a constant value of ~3 x 10^8 m/s. Option C is incorrect because the wavelength is calculated as the speed of light divided by the frequency, which is approximately 300,000 m for a frequency of 1000 Hz.

An Electron Vibrating to and Fro 1000 Times Per Second