All Textbook Topics - Light - Law of Reflection - The normal line is a line at a right angle (90 degrees) to the surface of an object
The normal line is a line at a right angle (90 degrees) to the surface of an object
To draw a normal line to the mirror, you must draw a line at 90 degrees to the surface of the mirror.
![](https://cdn.figureoutphysics.com/text/1587048541YQMEAHOmjubZ7XcnhlFv9BTqG8eC16.png)
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