An object is placed at 100 mm in front of a concave mirror which produces an upright image (erect image). The radius of curvature of the mirror is

Q. An object is placed at 100 mm in front of a concave mirror which produces an upright image (erect image). The radius of curvature of the mirror is:

A.            Less than 100 mm

B.            Between 100 mm and 200 mm

C.            Exactly 200 mm

D.            More than 200 mm

Answer: More than 200 mm