What is the distance from the fly to the lens

Reference no: EM13665289

A fruit fly sits in front of a lens. The lens forms a virtual image of the fly 20 cm from the lens. The image of the fly appears upright and two times larger than the actual fly. What is the focal length of the lens? What kind of lens is it? What is the distance from the fly to the lens?

Reference no: EM13665289

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