Physics

Physics

Problem

A concave mirror of focal length 12 cm forms a virtual, erect image that is twice the height of the 2.0 cm tall object. What is the object distance from the mirror (u) according to the Cartesian sign convention? a) +6 cm+6\ \text{cm} b) −6 cm-6\ \text{cm} c) −8 cm-8\ \text{cm} d) −18 cm-18\ \text{cm}

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