How is fringe width of an interference pattern in Young.s double slit experiment affected if the two slits are brought closer to each other?

Explanation

To determine how the fringe width of an interference pattern in Young's double slit experiment is affected when the two slits are brought closer together, we can follow these steps:

### Step 1: Understand the Fringe Width Formula
The fringe width (β) in Young's double slit experiment is given by the formula:
\[ \beta = \frac{D \cdot \lambda}{d} \]
where:
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