Question

the electromagnetic spectrum is a range of electromagnetic energies from low to high. visible light is the only part of the electromagnetic spectrum that people can see. the colors of the spectrum of visible light: red, orange, yellow, green, blue, indigo, and violet. each color has a different wavelength. red has the longest wavelength and violet has the shortest. these colors are seen in a rainbow. the acronym roy g biv can be used to help remember the order of the colors of the rainbow. what color has the longest wavelength? yellow violet red

Explanation:

According to the information provided, red has the longest wavelength among the colors listed (red, orange, yellow, green, blue, indigo, violet).

Answer:

red