- #1

matt72lsu

- 94

- 0

## Homework Statement

The virtual image produced by a convex mirror is one-quarter the size of the object.

b) What is the focal length of this mirror?

## Homework Equations

1/di = 1/f - 1/do

## The Attempt at a Solution

i found di to be -9.3 cm but when i solved for f i keep getting it wrong. Help! (and -9.3 is correct so that's not the problem)