- #1
kankerfist
- 35
- 0
I'm studying for a test that is going to cover mirrors and lenses. I was under the impression that the focal length for any concave or convex mirror was half the radius of curvature:
f=r/2
but one of the questions in my book involving a convex mirror uses a different value for f, according to the solutions manuel. It says that:
f=2/r
of all the questions I've encountered while studying for this test, f has always been r/2. can someone help explain why f can be 2/r?
f=r/2
but one of the questions in my book involving a convex mirror uses a different value for f, according to the solutions manuel. It says that:
f=2/r
of all the questions I've encountered while studying for this test, f has always been r/2. can someone help explain why f can be 2/r?