Question

1. When a cupcake is placed 12.5 cm12.5 cm away from the center of a concave mirror, its image is located 50.1 cm50.1 cm behind the mirror. What is the focal length of the mirror?

2. You have a concave spherical mirror with a 11.3 cm11.3 cm radius of curvature. You place an object on the mirror's axis, 18.7 cm18.7 cm in front of the mirror. How far is the object's image from the mirror?

3. You are given a spherical mirror and wish to determine its properties. You place an object on its axis, 42.5 cm42.5 cm in front of it, and discover that the mirror creates a virtual image located 11.7 cm11.7 cm from the mirror. Find the mirror's focal length and calculate the mirror's radius of curvature.

4. An object 1.30 cm1.30 cm high is held 3.00 cm3.00 cm from a person's cornea, and its reflected image is measured to be 0.167 cm0.167 cm high. What is the magnification? How far away is the image? What is the magnitude of the radius of curvature of the convex mirror formed by the cornea?

These are all similar type problems and I'm very confused by all of then. HELP

Answer 1