Virtual image with convex lens · PhysicsBowl 2019 #29
Physics · optics
Problem
A convex lens has a focal length of 50 mm. How far from the lens must an object be placed if it is to form a virtual image magnified in size by a factor of three?
(A) 33 mm (B) 38 mm (C) 43 mm (D) 48 mm (E) 53 mm