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Image Formation by Convex Lens

a galilien te...

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a galilien telescope consists of an objective of focal length 12 cm ,eyepiece of focal length 4 cm .what should be the separation of two lenses when the virtual image of a distant object is formed at a dis†an ce of 24 cm from the eyepiece ? 1. 7.2 cm 2. 84 3.75 4. 88

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