Solve the following question:

Asked by nkrbasak | 7th Jan, 2013, 01:42: PM

Expert Answer:

we know that 1/v + 1/u = 1/f . as the miror is convex then focal leanth is -ve and image distance is -ve. then the equation stands -1/v + 1/u = -1/f . here v=u/2. then -2/u + 1/u = -1/f => f=u

Answered by  | 7th Jan, 2013, 05:20: PM

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