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A prescription for a corrective lens calls for + 3.30 D . The lensmaker grinds the...

A prescription for a corrective lens calls for + 3.30 D . The lensmaker grinds the lens from a "blank" with n = 1.54 and a preformed convex front surface of radius of curvature of 35.0 cm.

What should be the radius of curvature of the other surface?

Express your answer to two significant figures and include the appropriate units.

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