Which color has a higher frequency?

Which color has a higher frequency?

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

Answer: (D)

Light color is tied to wavelength, and frequency increases as wavelength decreases (f = c/λ). Among the colors listed, red has the longest wavelength and thus the lowest frequency. Yellow and green have shorter wavelengths than red, and blue has the shortest wavelength in the group, giving it the highest frequency. So blue is the color with the higher frequency.

Light color is tied to wavelength, and frequency increases as wavelength decreases (f = c/λ). Among the colors listed, red has the longest wavelength and thus the lowest frequency. Yellow and green have shorter wavelengths than red, and blue has the shortest wavelength in the group, giving it the highest frequency. So blue is the color with the higher frequency.