Find the half angular width of the central bright maximum in the fraunhofer diffraction pattern of a slit of width `12xx10^(-5)cm` when the slit is illuminated by monochromatic light of wavelength 6000 Å.

Explanation

To find the half angular width of the central bright maximum in the Fraunhofer diffraction pattern of a slit, we can follow these steps:

### Step 1: Understand the Concept
The central maximum in a single slit diffraction pattern is defined by the first minima on either side. The half angular width is the angle from the center to the first minima on one side.

### Step 2: Identify the Relevant Formula
For a single slit diffraction, the position of the first minima is given by the formula:
\[ a \sin \theta = n \lambda \]
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