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give the derivation of lens maker formula

Asked by Shakti (student) , on 11/7/15


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do you want the whole derivation or just the expression?

Posted by vidy_910 (parent) on 24/9/10

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 hey give the whole derivation?

Posted by rohit_vm (student) on 7/10/10

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 hey, d whole derivtion is in lesson 4.......see carefully.......

Posted by Aastha Khokhar (student) on 16/10/10

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This is done basically taking angles and by using similar triangles..please refer ncert.

Posted by Saurabh (parent) on 3/11/14

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