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C. Consider an object and a screen at a fixed distance from each other d =...

C. Consider an object and a screen at a fixed distance from each other d = 50 cm. For the lens of focal distance f = 10 cm, demonstrate mathematically that there are two solutions if and only if do + di = d (the fixed distance between object and screen) is larger than 4 times the focal distance of the lens.

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Here we apply concept of image formation by lens and lens formula and quadratic equation.

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