Question

How does the frequency of an electromagnetic wave compare with the frequency of the vibrating electrons that produce it?

Answer 1

Does visible light make up a relatively large part or a relatively small part of the electromagnetic spectrum?

Electromagnetic spectrum is a continuous range of waves extending from radio waves to gamma rays, frequencies range from 10^4 Hz to 10^18 Hz. The visible light frequencies range from 400X10^14 Hz to 800X10^14HZ. Thus the visible light make up relatively small part of electromagnetic spectrum. It is less than a millionth of 1% of measure electromagnetic spectrum.