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Reflection of Light With Two Plane Mirrors -- Double Mirrors Placed at a 90-Degree Angle
First page of Reflection of Light With Two Plane Mirrors -- Double Mirrors Placed at a 90-Degree Angle

The information in this document was accurate as of the original publication date.

 Audience: Educators
Grades: K-8


Students experiment to find that when two plane mirrors are placed at a 90-degree angle, the image of the first mirror is reflected in the second mirror so that the reversed mirror image is reversed again, and the viewer sees a true image.

Reflection of Light With Two Plane Mirrors -- Double Mirrors Placed at a 90-Degree Angle  [113KB PDF file]

This activity is part of the Optics Educator Guide.
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