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Write an illustrated summary for this learning goal: “Explain how a real image is formed by...

Write an illustrated summary for this learning goal: “Explain how a real image is formed by a converging lens using ray diagrams.” Make sure to include why the image is upside down and varies in size and location.

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Answer #1

A converging lens is a lens with positive focal length. The rays converge to a point after passing through the lens. The image is formed at the converging point.

Most of the images formed by a converging lens are real and inverted. However, a converging lens can also from a virtual, upright image if we place the object between the focal point and lens. However, we cannot project this image on screen.

Here are the ray diagram. Not to scale

when object distance is less than focal length.

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