Physics, 31.10.2019 02:31, djkk1367

The sun is so far from earth that rays of sunlight are effectively parallel when they reach earth’s surface. sunlight reflected from a mirror can be focused onto a pot of water, raising its temperature enough to pasteurize water, or cook food. which kind of spherical mirror could be used for this purpose?

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The sun is so far from earth that rays of sunlight are effectively parallel when they reach earth’s...