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Light and optics - mirror

1. Homework Statement
A shoplifter is spotted using a convex mirror, in which the image appears to be 22.0cm behind the mirror, which has a focal length of 24.0cm. HIs apparent height, in this image, is 14.0cm tall.
A)How far away is the shoplifter from the mirror?
B) How tall is the shoplifter?

2. Homework Equations
M=hi/ho
1/do + 1/di = 1/f
M= -di/do

3. The Attempt at a Solution
A) 1/22 + 1/do =1/24
do=2.64 m
 
47
1
1. Homework Statement
A shoplifter is spotted using a convex mirror, in which the image appears to be 22.0cm behind the mirror, which has a focal length of 24.0cm. HIs apparent height, in this image, is 14.0cm tall.
A)How far away is the shoplifter from the mirror?
B) How tall is the shoplifter?

2. Homework Equations
M=hi/ho
1/do + 1/di = 1/f
M= -di/do

3. The Attempt at a Solution
A) 1/22 + 1/do =1/24
do=2.64 m
Remember that M=di/do=hi/ho
 

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