Two slits are made one millimeter apart and the screen is placed one metre away. When blue-green light of wavelength 500 nm is used, the fringe separation is

Explanation

To solve the problem of finding the fringe separation in Young's double slit experiment, we can follow these steps:

### Step 1: Identify the given values
- Distance between the slits (d) = 1 mm = \(1 \times 10^{-3}\) m
- Distance from the slits to the screen (D) = 1 m
- Wavelength of blue-green light (λ) = 500 nm = \(500 \times 10^{-9}\) m

### Step 2: Use the formula for fringe separation
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