Which of the following visible colors of light has the highest frequency?

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

Answer: (A)

Verified step by step guidance

1. Recall the relationship between the color of visible light and its frequency. Visible light ranges from red to violet, with red having the longest wavelength and violet having the shortest wavelength.
2. Understand that frequency (\(f\)) and wavelength (\(\lambda\)) are inversely related through the speed of light (\(c\)) by the equation: \[c = \lambda \times f\]
3. Since the speed of light (\(c\)) is constant, a shorter wavelength corresponds to a higher frequency. Therefore, among the colors listed, the color with the shortest wavelength will have the highest frequency.
4. Identify the order of colors by wavelength from longest to shortest: Red > Yellow > Green > Violet. This means violet has the shortest wavelength.
5. Conclude that violet light has the highest frequency because it has the shortest wavelength among the visible colors given.