Question

what's reason reletative index wavelength in which belong value....plz understand my question and give ANSWER fastly plzzzzzzzzzz

Answer 1

Since, White light consist of 7 colours Violet,Indigo, Blue, Green,Yellow, Red (VIBGYOR).
The wavelength of red colour is maximum and wavelength of Violet is Minimum.

But, The frequency of Red is minimum and frequency of violet is maximum

Therefore, More is the frequency, lesser will be the wavelength so different colours have different wavelengths.

Order of wavelength

V< I < B < G < Y< O < R