JAMB - Physics (1988 - No. 26)
When white light is dispersed by a spectrometer, the component having the shortest wavelength is
orange
green
violet
red
Explanation
Wavelength Order: In the visible spectrum, the order of colors from shortest to longest wavelength is as follows: violet, blue, green, yellow, orange, and red.
Therefore, violet light has the shortest wavelength, making it the first color in the spectrum when white light is dispersed.
Therefore, violet light has the shortest wavelength, making it the first color in the spectrum when white light is dispersed.