A ray of light incident at an angle of incidence 'I' passes through an equilateral glass prism such that the refracted ray inside the prism is parallel to its base and emerges from the prism at an angle of emergence 'e'.
How is the angle of emergence 'e' related to the angle of incidence 'i' ?

Explanation

To solve the problem, we need to analyze the behavior of light as it passes through the equilateral glass prism. Here’s a step-by-step solution:

### Step 1: Understand the Geometry of the Prism
An equilateral prism has three equal angles, each measuring 60 degrees. When a ray of light strikes the prism, it refracts at the first surface.

**Hint:** Remember that in an equilateral prism, all angles are equal and measure 60 degrees.

### Step 2: Identify the Angle of Incidence
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