Question
Sat May 31, 2008 By:

Numerical Problem

Expert Reply
Wed July 16, 2008

use the formula m = v / u , value of m is (-+3) which is magnifiaction 6/2

find the value of v in terms of u from above formula

now use the formula 1/f = 1/v -1/u ,use this formula   put values of f  and v and find u which is answer.

 

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