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April 26, 2015

Homework Help: physics

Posted by Need help please! on Tuesday, October 23, 2012 at 7:35am.

A source of light and a screen lie in the same plane, 3 metres in front of a plane mirror, the mirror surface being parallel with the screen. If the mirror is rotated through 10degrees, how far will the patch of light mves across the screen?

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