Question

two divers are swimming in clear ocean water at a depth of 150 m. the first diver is wearing a white wetsuit. when the second diver sees the first diver at that depth, which of the following colors would he see? violet red orange blue

Explanation:

When light penetrates water, different wavelengths (colors) are absorbed at different rates. Longer wavelengths (such as red, orange) are absorbed more quickly than shorter wavelengths. At a depth of 150 m, longer - wavelength colors (red, orange) are mostly absorbed. Violet has a very short wavelength but is also absorbed to some extent in water. Blue light, with a relatively short wavelength, can penetrate deeper in water compared to red, orange. A white wetsuit reflects all colors of light. But at this depth, only the color that can still reach the second diver (after absorption of other colors) will be seen. Since blue light can penetrate relatively deeper, the second diver will see the wetsuit as blue.

Answer:

blue