For a single slit of width ''a'' the first minimum of the interference pattern of a monochromatic light of wavelength e occurs at an angle of `(lambda)/(a)`. At the same angle of `(lambda)/(a)`, we get a maximum for two narrow slits separated by distance ''a''. Explain.

Explanation

To solve the problem, we need to analyze the conditions for the first minimum in a single slit diffraction pattern and the condition for a maximum in a double slit interference pattern.

### Step-by-Step Solution:

1. **Understanding Single Slit Diffraction:**
- For a single slit of width \( a \), the condition for the first minimum in the diffraction pattern is given by:
\[
a \sin \theta = \lambda
...