What happens to interference fringes when the distance between the two coherent sources is decreased?

Explanation

To solve the question of what happens to interference fringes when the distance between two coherent sources is decreased, we can follow these steps:

### Step 1: Understand the Setup
In a typical Young's Double Slit Experiment, we have two coherent light sources (or slits) that produce an interference pattern on a screen. The distance between the two slits is denoted as \( d \), and the distance from the slits to the screen is denoted as \( D \).

**Hint:** Familiarize yourself with the Young's Double Slit Experiment and the terms used in it.

### Step 2: Define Fringe Width
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