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CBSE Class 10 Answered

numerical
Asked by | 28 May, 2009, 01:26: PM
answered-by-expert Expert Answer

Focal length of combination,f=f1f2/(f1+f2) =(-300)/(-5)=60 cm

Power of combination=100/60=1.67 D

 

Answered by | 29 May, 2009, 12:58: AM
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