How much a beam would diffract when it travels a distance of 5 m, after crossing an aperture of 3mm having wavelength 3000 Å ?

Explanation

To solve the problem of how much a beam would diffract when it travels a distance of 5 m after crossing an aperture of 3 mm with a wavelength of 3000 Å, we can follow these steps:

### Step 1: Convert the given values to SI units
- **Aperture (a)**: The aperture is given as 3 mm. To convert this to meters:
\[ a = 3 \text{ mm} = 3 \times 10^{-3} \text{ m} \]

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