Final answer:
The wavelengths of the photons in the visible spectrum range from 400 to 700 nm.
Step-by-step explanation:
The visible spectrum is the portion of the electromagnetic spectrum that we can see. It includes wavelengths between about 400 and 700 nm. The colors in the visible spectrum include red, orange, yellow, green, blue, indigo, and violet.
The wavelength of each photon in the visible spectrum falls within this range, making them part of the visible part of the spectrum.