Question

Problem 14

Answer 1

Given information

An object moves from just outside the focal point of a converging lens to just inside it.

Step-by-step explanation

Step 1.

Nature of an image formed by a converging lens changes as the distance of the object from the lens changes.

Position of object	Position of object	Nature of image
At infinity	At the focus	Real, inverted and highly diminished
Beyond 2F	Between the focus and centre of curvature	Real, inverted and diminished
At 2F	At centre of curvature	Real, inverted and same size.
Between F and 2F	Beyond the centre of curvature	Real, inverted and magnified
At the focus F	At infinity	Real, inverted and magnified
Between focus F and optical centre C	Behind the object	Virtual, erect and magnified