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pls answer this - an object placed 20cm in front of mirror is found to...

Posted By : abhinav rawat
Posted on : 08:09:22 PM on September 30, 2011

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abhinav rawat
abhinav
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Posted on : 08:09:22 PM on September 30, 2011
pls answer this - an object placed 20cm in front of mirror is found to have an image 15 cm(a) in front of mirror(b) behind th e mirror .find the focal length of the mirror and kind of mirror.

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