The refractive indices of flint glass prism for violet, Yellow and Red colours are 1.790, 1.795 and 1.805 respectively, find dispersive power of the flint glass.

Explanation

To find the dispersive power of flint glass, we will follow these steps:

### Step 1: Identify the refractive indices
We are given the refractive indices for flint glass:
- For violet light (μ_v): 1.790
- For yellow light (μ_y): 1.795
- For red light (μ_r): 1.805

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