Thin Lens And Lens Maker Equations Video Lessons

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Problem: 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.Where should the paper be placed relative to the lens to get a sharp image?

FREE Expert Solution

Lens equation:

1f=1so+1si

We only need focal length and the object distance to solve this problem.

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Problem Details

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.

Where should the paper be placed relative to the lens to get a sharp image?

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