In Young's experiment if two straight narrow parallel slits 3 mm apart are illuminated with monochromatic light of wavelength `5900 xx 10^(-8)` cm (centimetre). Fringes are observed at a distance of 3m from slits. Find the width of fringes.

Explanation

To find the width of the fringes in Young's double slit experiment, we can follow these steps:

### Step 1: Identify the given values
- Distance between the slits (d) = 3 mm = \(3 \times 10^{-3}\) m
- Wavelength of light (\(\lambda\)) = \(5900 \times 10^{-8}\) cm = \(5900 \times 10^{-10}\) m (since 1 cm = \(10^{-2}\) m)
- Distance from slits to the screen (D) = 3 m

### Step 2: Write the formula for fringe width
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