A magician wishes to create the illusion of a 2.97-m-tall elephant. He plans to do this by forming a virtual image of a 38.0 cm tall model elephant with the help of a spherical mirror.
(a) If the model must be placed 3.00 m from the mirror, what radius of curvature is needed? (Include the sign of each answer.)
m
(b) How far from the mirror will the image be formed? (Enter a negative value if the image forms behind the mirror.)