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The objective lens and the eyepiece of a microscope have focal lengths of 4.0 mm and 25 mm,respectively.The objective produces a real image 30 times the size of the object,with the final image viewed at infinity.The near point of the microscope user is at 25 cm.What is the distance between the objective lens and the real image that it produces?
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The practice of breeding and raising certain species of animals and plants under controlled conditions to obtain desired traits.
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The measure of the efficiency of production, often quantified as the ratio of output to inputs in the production process.
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