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A lens of focal length f1 = +20 cm has an object positioned 50 cm in...

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Physics

A lens of focal length f1 = +20 cm has an objectpositioned 50 cm in front of it. A second lens of focal lengthf2= -15 cm is located 10 cm behind the first lens. a)Determine the two image positions for this combination of lenses.b) Is each image real or virtual, upright or inverted, andmagnified or demagnified?

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First we will find the distance of image from first lens of f1 20cm we will denote distance of object in front of first lens as s1 and distance of its image by first lens as s1 cm behind the first lens on other side 1s1 1s1 1f1 s1 s1 f1 s1 f1 50205020 3333 cm so    See Answer
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