An object is placed at the focus of a concave lens. Where will be image ?

Options

A. Equal to 2f
B. Greater than f but less than 2f
C. Equal to f
D. Greater than 2f

Answer

A

Explanation

Radius of curvature `R = 2 xx` focal length of lens or mirror.
Related Theory
The image formed is concave lens is always diminished irrespective of the position of position of an object.