Question

The refractive indices of the prism made from the flint glass for Red and blue light are 1.64444 and 1.6637 respectively. It's dispersive power is

Answer 1

refractive index of violet color is 1.664 mv=1.664

refractive index of red color is 1.644 μr=1.644

ω(dispersive power)=?

Mean refractive index=μ=(μr+μb)/2=(1.664+1.644)/2=1.654

using formula for dispersive power ω=(μb-μr)/μ-1=(1.664-1.644)/1.654-1=0.0305

Answer 2

difficult..................