Physics

Physics

Problem

A lens of power +4 D+4\,\text{D} is used as a magnifier. If an object is placed 15 cm15\,\text{cm} from the lens, calculate the image distance vv. a) +9.4 cm+9.4\,\text{cm} b) −37.5 cm-37.5\,\text{cm} c) +37.5 cm+37.5\,\text{cm} d) −9.4 cm-9.4\,\text{cm}

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