Question

If you have a convex lens whose focal length is 10.0 cm, where would you place an object in order to produce an image that is virtual?

Answer 1

When an object is placed between first focus and optical center of a convex lens then virtual image is produced.

Here , focal length is 10.0 cm . So object distance should be less than 10.0 cm

Final answer is : between focus and optical center of the lens