A light ray strikes a reflective plane surface at an angle of `30^@` with the plane surface.
(i) Find the angle of incidence. (ii) Find the angle of reflection. (iii) Find the angle of between the incident and the reflected ray. (iv) Find the angle between the reflected ray and the plane surface.

Explanation

Let's solve the problem step by step.

### Step 1: Find the angle of incidence
The angle of incidence is defined as the angle between the incident ray and the normal (an imaginary line perpendicular to the surface at the point of incidence). Given that the light ray strikes the reflective plane surface at an angle of \(30^\circ\) with the plane surface, we can find the angle of incidence using the following relationship:

\[ \text{Angle of incidence} = 90^\circ - \text{Angle with the plane surface} \]
...