Physics, 07.03.2020 04:54 AmazingColor

The lens labelled (A) has radii 12.5cm and 16.7cm. Using the shape of the lens to assign the signs of the radii, calculate the focal length of the lens. Give your answer with the correct positive or negative sign using the usual convention for lenses.

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The lens labelled (A) has radii 12.5cm and 16.7cm. Using the shape of the lens to assign the signs o...