# How far below the top edge does the ray strike the mirror?

#### rayhan619

1. Homework Statement
A light ray leaves point A in the figure, reflects from the mirror, and reaches point B. (Intro 1 figure) figure attached

How far below the top edge does the ray strike the mirror?

2. Homework Equations

3. The Attempt at a Solution

im not sure exactly where it says to mark?

#### Attachments

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#### tiny-tim

Homework Helper
How far below the top edge does the ray strike the mirror?

im not sure exactly where it says to mark?
Hi rayhan619!

You have to mark the point where the light hits the mirror …

either use a theorem about reflection angles,

or draw the image of one and join it to the other.

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