The sun is 150,000,000 km from earth; its diameter is 1,400,000
km. A student uses a 5.2-cm-diameter lens with *f* = 10 cm
to cast an image of the sun on a piece of paper.

What is the diameter of the image on the paper?

## Answer

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# What is the diameter of the image on the paper?

## Answer

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The sun is 150,000,000 km from earth; its diameter is 1,400,000
km. A student uses a 5.2-cm-diameter lens with *f* = 10 cm
to cast an image of the sun on a piece of paper.

What is the diameter of the image on the paper?