The refractive index of flints glass prism for C, D and F lines are 1.790,1.795 and 1.805 respectively. Find the dispersive power of the flint glass prism.

The refractive index of flints glass prism for C, D and F lines are 1.

1.	The refractive index of flints glass prism for C, D and F lines are 1.790,1.795 and 1.805 respectively. Find the dispersive power of the flint glass prism.
Answer» SOLUTION :`mu_c=1.790, mu_D=1.795 and mu_F=1.805` `OMEGA=(mu_F-mu_c)/(mu_D-1)=(1.805-1.790)/(1.795-1)=0.015/0.795=0.1887`