Two positive lens l1 and l2 has the same focal length fgt0, Ask an Expert

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Two positive lens L₁ and L₂ has the same focal length f>0. The distance between them is f/2. L₁ is placed to the left of L₂.

(a) An object is placed to the left of L1 with a distance of 4f. Please determine the final image position after this lens system.

b) If we treat this lens system as a single lens, what will be the focal length of this entire system?

Hint: The focus of the combined lens system can be determined by sending parallel rays into this system and see where the light focused.

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Category:- Physics
Reference No.:- M9522078

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