Q

Light of wavelengths 4500 Å, 5400 Å and 6000 Å passes through a prism. Which has the greatest angle of deviation?

RRB Group-D 16/09/2022 / Shift-I 2022
✓ Answer: A 4500 Å light
In ordinary dispersion, shorter wavelengths have a higher refractive index and greater deviation. Thus 4500 Å deviates most.