Question

What is the origin or source of Visible light?

Answer 1

Visible light:

1. Atomic excitation produces visible light.
2. The only wavelengths of the electromagnetic spectrum that humans can see are visible light waves.
3. The colors of the rainbow are the different wavelengths of visible light: red, orange, yellow, green, blue, indigo, and violet.

Therefore, the source of visible light is atomic excitation.