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January 27, 2015

January 27, 2015

Posted by **please help me out!!! please** on Tuesday, February 12, 2013 at 11:49am.

When the distance between the hole and floor is h1=20 cm, the image's length is L1=20 cm; when the distance between the hole and floor is h2=33.333 cm, the image's length is L2=36 cm . What is the length L of the ceiling lamp in meters?

- physics!!!!!!! -
**Marios**, Saturday, February 16, 2013 at 10:10amL2/h1=1.8

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