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Ch $.3\_2[$ GEOMETRIC OPTICS AND IMAGE FORMATION

Four optical elements

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In the four diagrams below, the solid arrow represents the object and the dashed arrow the image. The rectangle shows the position of an SINGLE OPTICAL ELEMENT. Match each diagram with the appropriate optical element.

First, is it a Lens or a Mirror? For a SINGLE ELEMENT, a Real image $($RI$)$ is always inverted, a Virtual image is always upright.