question

Asked by  | 28th May, 2009, 09:05: PM

Expert Answer:

Magnification of image is : v/u=0.5 Hence v=0.5 u

We have:

1/v-1/u=1/f

1/0.5u -1/u=--1/12

1/u=-1/12

Hence u=-12 cm

Answered by  | 29th May, 2009, 12:11: AM

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