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CBSE Class 10 Answered

PLEASE SOLVE THIS!
Asked by gunjansingh | 20 May, 2009, 05:02: PM
answered-by-expert Expert Answer

f = 10 cm; m = 2; u = ?

m =  v / u

v = 2 u

using (1 / v) - (1 / u) = (1 / f)

(1 / 2 u ) - (1 / u) = (1 / f)

- 1 / u = 1 / 10

u = - 10 cm

 

Answered by | 30 May, 2009, 10:43: AM
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