Light of wavelength `6 xx10^(-5)` cm falls on screen at a distance of 100 cm from a narrow slit. Find the width of the slit if the first minima lies 1mm on either side of the central maximum

Explanation

To solve the problem of finding the width of the slit given the wavelength of light and the position of the first minima, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the given values:**
- Wavelength of light, \( \lambda = 6 \times 10^{-5} \) cm = \( 6 \times 10^{-7} \) m (since \( 1 \text{ cm} = 10^{-2} \text{ m} \))
- Distance from the slit to the screen, \( D = 100 \) cm = \( 1 \) m
- Distance to the first minima from the central maximum, \( X_1 = 1 \) mm = \( 1 \times 10^{-3} \) m
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