A wavelength of 500 nm falls within the visible-light spectrum. What color does this wavelength correspond to?

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

Answer: (A)

Verified step by step guidance

1. Recall that visible light wavelengths range approximately from 400 nm to 700 nm, with different colors corresponding to specific wavelength ranges within this spectrum.
2. Identify the general wavelength ranges for common visible colors: Violet (about 400-450 nm), Blue (about 450-495 nm), Green (about 495-570 nm), Yellow (about 570-590 nm), Orange (about 590-620 nm), and Red (about 620-700 nm).
3. Compare the given wavelength of 500 nm to these ranges to determine which color it falls into.
4. Since 500 nm lies between 495 nm and 570 nm, it corresponds to the green region of the visible spectrum.
5. Therefore, the color associated with a wavelength of 500 nm is green.