What is the focal length of the lens

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A lens is located at the 50.0 cm mark on an optical bench. When an object is placed at the 30.0 cm mark, an image is formed at the70.0 cm mark.

(a) What is the focal length of the lens?

 

(b) Characterize the image by indicating whether it is real or virtual, upright or inverted, and magnified or reduced. Suppose that offsets are accounted for in these positions.

Reference no: EM13660437

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