Find the wavelength for each of the rainbow colors (ROYGBV) and calculate the frequency for each color.?

Answer 1

Visible light lies approximately in the range from 400 to 700 nanometers in wavelength.

It is impossible to give an exact number for the frequency of, say , yellow light, since yellow is not precisely defined. Colors are perceived differently by different people.

The choice of which range of frequencies corresponds to the color yellow is completely arbitrary.