hello

Asked by mehaksaini | 12th Feb, 2010, 03:10: PM

Expert Answer:

Dear Student

One must use convex lens.

Mangification m= f/(f-u)

u =Object distance  say u=4

with f=30    m=30/26=1.15

f=5===>   m= 5/1=5

So it is better to use A convex lens of focal length 5 cm

Regards

Team

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Answered by  | 13th Feb, 2010, 11:02: AM

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