While looking at her image in a cosmeticmirror, Dina notes that her face is highly magnified when she isclose to the mirror, but as she backs away from the mirror, herimage first becomes blurry, then disappears when she is about28.0 cm from the mirror, and theninverts when she is beyond 28.0 cm. Based on these observations,answer the following questions about the mirror.
What is the focal length of themirror?
f= cm
What isthe radius of curvature of the mirror?
R= cm