The refractive indices of a material for red, violet and yellow colour lights are 1.52, 1.62 and 1.59 respectively. Calculate the dispersive power of the material. If the mean deviation is `40^@` what will be the angular dispersion produced by a prism of this material ?

Explanation

To solve the problem step-by-step, we will first calculate the dispersive power of the material and then determine the angular dispersion produced by the prism.

### Step 1: Calculate the Dispersive Power (Ω)

The formula for dispersive power is given by:

\[
\Omega = \frac{\mu_V - \mu_R}{\mu_Y - 1}
...