Question

(i) Draw a labelled ray diagram to show the formation of a virtual magnified image of an object by a convex lens.

Hint:

In the case of a virtual image formed by a convex lens, the object is always placed between the focus and the lens. The image is magnified, virtual, and upright.

Answer 1

To draw the ray diagram for the formation of a virtual magnified image by a convex lens, follow the steps below:
1. Place the object (represented by an arrow) between the focus (F) and the optical center (O) of the lens.
2. The object emits rays that travel parallel to the principal axis.
3. The parallel ray refracts through the lens and passes through the focal point on the other side.
4. Another ray from the object passes through the optical center and continues in a straight line.
5. The two refracted rays diverge after passing through the lens.
6. These rays appear to come from a point behind the lens, forming a virtual image. The image is upright and magnified.
Ray Diagram:
\includegraphics[width=0.5\linewidth]{image7.png} In the diagram, the object is placed between the focal point and the optical center. The rays diverge after passing through the lens, and the virtual image is formed on the same side as the object.