- It is a narrow range of electromagnetic spectrum.
- It is produced by atomic excitation.
- Its frequency range from 4 x 10^14 Hz to about 7 x 10^14 Hz.
- Its wavelength lies between 700 nm to 400 nm.
- The visible light emitted or reflected from the objects around us information about the world.
- It is detected by the eyes, photocells, photographic film.
