LawOfRefln1jpg

An inexpensive laser is set to line setting and directed towards a half-silvered mirror. The laser line approaches the mirror at a 15 degree angle with respect to the normal and reflects from the mirror at 15 degree angle on the other side of the normal line. The angle of incidence is equal to the angle of reflection. This is known as the law of reflection.

For more information about the law of reflection, visit The Physics Classroom Tutorial - www.physicsclassroom.com/Class/refln/index.cfm.

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