- #1
CaneAA
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Homework Statement
A woman stands between a vertical mirror, 0.5 meter tall, and a distant tree whose height is H. she is 1.0 m from the mirror and the tree is 9.0 m from the mirror. If she sees the tree just fill the mirror, what is H?
Homework Equations
m = (hi/ho)/(-di/do)
hi = image height = 0.5
ho = object height = H
di = image height
do = object height
The Attempt at a Solution
I'm trying to solve the problem using the magnification equation. The image height has to be the height of the mirror and the object height is the unknown.
However, I'm having a hard time figuring out what values to use for di and do. In all the problems I've done so far, "do" was the distance from the object to the mirror and "di" was the distance from the image to the mirror (equal to "do" but negative for a virtual image), but in this problem, I don't know how to incorporate the person's distance from the mirror.
The correct answer is 5 m.