Physics, 18.01.2020 01:31, hardwick744

Imagine you're in a completely dark room with no windows and you cut a 1-ft2 round hole in the roof. when the sun is high in the sky, about 100 w of solar power enters the hole. on the floor where the light hits, you place a beach ball covered with aluminum foil, with the shiny side out. discuss the illumination in your room compared with that of a 100-w incandescent lightbulb?

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Imagine you're in a completely dark room with no windows and you cut a 1-ft2 round hole in the roof....