Question

What is the difference between virtual images of an object formed by a concave mirror and a convex mirror?

Answer 1

The virtual image of an object formed by a concave mirror is always magnified but the image formed by a convex mirror is always a diminished one.

Answer 2

Basis	Concave Mirror	Convex Mirror
Size of Image	Magnified (larger than the object).	Diminished (smaller than the object).
Object Position	Only when the object is between the Pole (P) and the Focus (F).	For all positions of the object in front of the mirror.
Field of View	Narrow; used for seeing detail.	Wide; used for seeing a large area.
Common Use	Shaving mirrors or dentist mirrors.	Rear-view mirrors in vehicles.