Classical Physics

    

Focusing Sun's Rays to a Point Using Spherical Mirror

Authors: Radhakrishnamurty Padyala

We show in this short communication, a proof without words, for the proposition that: If a parabolic-mirror focuses, by reflection, Sun’s rays parallel to its axis at a unique point, viz., its focus, then it necessarily follows that a spherical-mirror too, does so. That is, a spherical-mirror focuses, by reflection, Sun’s rays parallel to its axis at a unique point, viz., its center. The point is also known as the ‘Burning point of the mirror’.

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[v1] 2021-06-10 01:53:13

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