Question

When an object moves towards a convex lens, the size of the image ______.

Options

• decreases

• increases

• first decreases then increases

• remains the same

Answer 1

When an object moves towards a convex lens, the size of the image increases. 

Explanation:

As an object moves from infinity towards the focus of a convex lens, the image moves away from the lens and its size continuously increases from highly diminished to highly magnified.