February 26, 2017

Homework Help: Physics

Posted by angel on Sunday, April 1, 2012 at 9:26pm.

The image of a crayon appears to be 20.6 cm
behind the surface of a convex mirror and is 1.64 cm tall. The mirror’s focal length is 54.3
a) How far in front of the mirror is the
crayon positioned?
Answer in units of cm
I keep on getting it wrong so the answer & explanation would be much appreciated.

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