Question

A large virtual image of an object is formed by:

• A. concave mirror
• B. convex mirror
• C. plane mirror
• D. concave lens

Hint:

Concave mirrors can produce magnified virtual images; convex mirrors and lenses always produce diminished or virtual images.

Answer 1

The Correct Option is A

A concave mirror forms a large virtual image when the object is placed between the pole \( P \) and the focus \( F \) of the mirror. In this region, the reflected rays diverge after reflection, and the image formed appears to be behind the mirror. Since the image cannot be projected on a screen, it is virtual. Moreover, the image is erect and magnified (larger than the object). This behavior is explained by the mirror equation and ray diagrams, where the object distance \( u \) is less than the focal length \( f \): \[ |u|<|f|. \] Hence, placing the object between the pole and focus results in a large, virtual, and erect image.