Two slits are separated by 0.320 mm. A beam of 500 nm light strikes the slits, producing an interference pattern. Determine the number of maxima observed in the angular range `- 30.0^(@) lt theta lt 30.0^(@)`.

Explanation

To determine the number of maxima observed in the angular range of \(-30.0^\circ < \theta < 30.0^\circ\) for a double-slit interference pattern, we can follow these steps:

### Step 1: Understand the formula for maxima
The condition for the \(n^{th}\) maxima in a double-slit experiment is given by the formula:
\[ d \sin \theta = n \lambda \]
where:
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