Physics, asked by dhruv2677, 1 year ago

Lens used by Galileo in his telescope

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Answered by nelvin1026

The basic tool that Galileo used was a crude refracting telescope. His initial version only magnified 8x but was soon refined to the 20x magnification he used for his observations for Sidereus nuncius. It had a convex objective lens and a concave eyepiece in a long tube.

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