In the Roy G. Biv mnemonic, which color is listed first?

In the Roy G. Biv mnemonic, which color is listed first?

• A. Red
• B. Orange
• C. Yellow
• D. Green

Answer: (A)

Remember that Roy G. Biv is a memory aid for the colors of the rainbow listed in order from red to violet. The sequence goes red, orange, yellow, green, blue, indigo, violet. Red is first because it has the longest wavelength among visible light, so when white light is dispersed into a spectrum, red appears at the start. The other options—orange, yellow, green—come after red in the spectrum, so they aren’t first. This mnemonic helps you recall the exact order of the colors as they appear in a rainbow.