Roy G. Biv is one way students remember these colors. In order from longest to shortest wavelength, what are the colors in the visible spectrum or the rainbow?

Roy G. Biv is one way students remember these colors. In order from longest to shortest wavelength, what are the colors in the visible spectrum or the rainbow?

• A. Red, Orange, Yellow, Green, Blue, Indigo, Violet
• B. Red, Orange, Yellow, Green, Indigo, Blue, Violet
• C. Red, Yellow, Orange, Green, Blue, Indigo, Violet
• D. Red, Orange, Yellow, Green, Violet, Indigo, Blue

Answer: (A)

Light in the visible spectrum is arranged from longer wavelengths to shorter wavelengths. Red has the longest wavelength, followed by Orange, Yellow, Green, Blue, Indigo, and Violet with the shortest. This is why the color sequence from longest to shortest is Red, Orange, Yellow, Green, Blue, Indigo, Violet. The listed order in the correct choice matches this exact progression. The other options mix the colors in ways that break the increasing-frequency (decreasing-wavelength) order—for example, placing Indigo before Blue, or misplacing Yellow relative to Orange, or ending with Violet in a position that doesn’t fit the wavelength sequence.

Light in the visible spectrum is arranged from longer wavelengths to shorter wavelengths. Red has the longest wavelength, followed by Orange, Yellow, Green, Blue, Indigo, and Violet with the shortest. This is why the color sequence from longest to shortest is Red, Orange, Yellow, Green, Blue, Indigo, Violet. The listed order in the correct choice matches this exact progression. The other options mix the colors in ways that break the increasing-frequency (decreasing-wavelength) order—for example, placing Indigo before Blue, or misplacing Yellow relative to Orange, or ending with Violet in a position that doesn’t fit the wavelength sequence.