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April 19, 2014

Homework Help: Physics

Posted by CHELSEY MORGAN on Saturday, January 7, 2012 at 5:42pm.

Two upright plane mirrors, 0.89 m tall, are placed parallel to each other 2.83 m apart. The top of the mirror on the right is then moved back a little so that its surface tilts away from the other mirror at an angle of 13.8 off the vertical. A narrow laser beam passes perpendicularly through a small hole in the very bottom of the mirror on the left and strikes the tilted mirror, from which it reflects. How many times will it reflect from the upright mirror?

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