Question

The rearview mirror of a car is a convex mirror (R = -15 m). Consider the image formed by a car that is 10 m from the mirror.

1. A convex mirror means that the mirror has a _positive/ negative_ radius of curvature. So, the center of curvature and

   focal length are located on the _same/ opposite_ side of the mirror as the incident and reflected (outgoing) light.

2. For a mirror, the focal length is equal to __________ of the radius of curvature.

3. What is the image distance?

4. What is the image magnification?

5. The sign of the image distance is ___________________, so the image is _real/ virtual_ and is formed on the _same/ opposite_ mirror side as the object. The sign of the magnification is __________________, so the image is _upright/ inverted_. The magnification is _less than/ equal to/ greater than_ 1, so the image size is ______________________ than the object size.

Answer 1

Use the radius of curvature to find the focal length and use the focal length and object distance to find the image distance and use the image distance and object distance to find the magnification as shown below.