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give the derivation of lens maker formula

Asked by Shweta Ganguly(student), +1 more on 24/9/12


do you want the whole derivation or just the expression?

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

 hey give the whole derivation?

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

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

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

thanks aastha2262

Posted by Mausam Anand(student), on 11/11/10

its ok

Posted by Aastha Khokhar(student), on 29/12/10
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