Точечный источник света находится на дне сосуда под слоем жидкости толщиной 0,9 м. показатель преломления жидкости 1,25. определите максимальное время, за которое свет, выходящий в воздух, проходит слой жидкости.
Alasp
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14.07.2019 21:20
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t=h/V V=c/n
t=h*n/c=0,9*1,25/0,3*10^9=3,75*10^-9 с=3,75 нс