Dispersive Power of Prism

Dispersive Power of Prism

### Formula

$$\omega=\frac{\mu_v-\mu_r}{\mu_y-1}$$

### Terminologies

- ω → Dispersive power.

- μv → Refractive index for violet light.

- μr → Refractive index for red light.

- μy → Refractive index for yellow light.

### Usage

- Used to compare dispersion ability of materials.