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An object is placed in front of two convex lenses one by one at a distance u from the lens.Tge focal length of the lenses are 30cm and 15cm respectively .If the size of the image formed in the two is the same then u is?(answer given is 20 cm)

Qazi 1 , 8 Years ago
Grade 12th pass
anser 1 Answers
Rituraj Tiwari

Last Activity: 4 Years ago

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