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If the radius of curvature of a concave mirror is 24 cm what is its focal length?

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If the radius of curvature of a concave mirror is 24 cm what is its focal length?

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R = 24 cm

m = \(\frac{h_i}{h_o}\) = \(\frac{2.5\,cm}{1\,cm}\) = -2.5

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