A thin lens has a power of +2.5 D

PHYSICS · Multi-part · AP · Physics 2: Algebra-based · Geometric Optics · Geometric Optics

Problem

A thin lens has a power of +2.5 D. Answer the following: (i) Calculate the focal length of the lens. (ii) Where should an object be placed so that the lens forms a real image 50 cm on the opposite side of the lens?

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