Question

The diagram given below shows the position of an object OA in relation to a converging lens whose foci are at F₁ and F₂.

Describe how the distance of the image from the lens and the size of the image change as the object is moved towards F₁.

Answer 1

As the object move towards F₁ the image will shift away from F₂ and it is magnified. At F1 the image will form at infinity and it is highly magnified. Between F₁ and optical centre, the image will form on the same side of object and will be magnified.