question_answer

You are asked to design a shaving mirror assuming that a person keeps it 10 cm from his face and views the magnified image of the face at the closest comfortable distance of 25 cm- The radius of curvature of the mirror would then be:         [JEE ONLINE 10-04-2015]

A) -24 cm

B) 24 cm

C) 60 cm

D) 30 cm

Correct Answer: C

Solution :

[c]