A plane wavefront incident on a reflecting surface at and angle of `30^(@)` with vertical. Find the angle (acute) of reflected wave with vertical.

Explanation

To solve the problem of finding the angle of the reflected wave with respect to the vertical when a plane wavefront is incident on a reflecting surface at an angle of 30 degrees with the vertical, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Given Information**:
- The angle of incidence with respect to the vertical is given as \(30^\circ\).

2. **Define the Angles**:
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