Trace the path of a ray emitted from the tip of the object toward the focal point of the mirror and then the reflected ray that results. Start by extending the existing ray emitted from the tip of the object. Then create the reflected ray.

Draw the vector for the reflected ray starting from the point where the incident focal ray hits the mirror plane.

Explanation:

Check the attachment for the ray diagram

Ray diagrams are important in locating the position of image of an object. It enables us to determine the nature of image formed by an object in from of a mirror or lens.

When drawing ray diagrams to locate the image I of an object O, there are two important steps to follows:

1. Ray emitted from the tip of an object O incidented on the mirror and parallel to the principal axis OP pass towards the focus F of the mirror after reflection.

2. The ray emitting from the tip of the mirror and passing through the centre of curvature of the mirror C undeflected reflects back on the same line of incidence. (Principle of reversibility).

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