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fa 2

Questions and answers by visitors named fa 2

Questions (2)

If a student desires to produce three times larger and an erect image from a double convex lens with focal length of 15 cm ,then
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What is the value of the focal length fn2of a convergent lens with index of refraction ( n2 =1.5) if it was fn1 =5cm for an
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2. 434 views