Define refractive index of a transparent medium. A ray of light passes through a triangular prism. Plot a graph showing the variation of angle of deviation with the angle of incidence.

Explanation

### Step-by-Step Solution:

1. **Definition of Refractive Index**:
The refractive index (n) of a transparent medium is defined as the ratio of the speed of light in vacuum (c) to the speed of light in that medium (v). Mathematically, it can be expressed as:
\[ n = \frac{c}{v} \]
where:
...