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Консультация № 199187
16.09.2020, 22:48
0.00 руб.
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1
1
Здравствуйте! У меня возникли сложности с таким вопросом:
определить расстояние между центральной и пятой светлыми полосами , если угол между зеркалами Френеля 20' длинна волны 600 нм. Источник находится на расстоянии 20 см от линии пересечения зеркал и на расстояние 2м от экрана. Обязательно сделать рисунок.
определить расстояние между центральной и пятой светлыми полосами , если угол между зеркалами Френеля 20' длинна волны 600 нм. Источник находится на расстоянии 20 см от линии пересечения зеркал и на расстояние 2м от экрана. Обязательно сделать рисунок.
Обсуждение
21.09.2020, 17:53
общий
это ответ
Здравствуйте, dar777!
Ширина интерференционной полосы в случае зеркал Френеля определяется формулой
где a и b - расстояние от линии пересечения зеркал до источника и экрана, [$948$] - угол между зеркалами, [$955$] - длина волны. В данном случае a = 20 см = 0.2 м, b = 2 м, [$948$] = 20', [$955$] = 600 нм = 0.0000006 м и
м = 0.567 мм.
Соответственно, расстояние между центральной и пятой светлыми полосами будет в 5 раз больше, то есть около 2.8 мм.
Ширина интерференционной полосы в случае зеркал Френеля определяется формулой
где a и b - расстояние от линии пересечения зеркал до источника и экрана, [$948$] - угол между зеркалами, [$955$] - длина волны. В данном случае a = 20 см = 0.2 м, b = 2 м, [$948$] = 20', [$955$] = 600 нм = 0.0000006 м и
м = 0.567 мм.Соответственно, расстояние между центральной и пятой светлыми полосами будет в 5 раз больше, то есть около 2.8 мм.
5
Это самое лучшее решение!
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