Question

When an object is placed between the principal focus and the optic centre of a convex lens, the resulting image distance would be .

• A. positive
• B. negative
• C. zero

Answer 1

The correct option is B negative

When an object is placed between the principal focus and the optic centre of a convex lens, the image formed would be virtual, erect and enlarged in nature, and it would form on the same side of the lens as shown in the figure:
As the image is formed to the left of the optic centre $\text{O}$, the image distance would be negative, according to the Cartesian sign convention.