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Консультация № 200225
05.02.2021, 09:17
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Здравствуйте, уважаемые эксперты! Прошу вас ответить на следующий вопрос:
Световой луч падает на границу раздела плавленого кварца и воды. Во сколько раз изменится частота и длина волны света при его преломлении?
Световой луч падает на границу раздела плавленого кварца и воды. Во сколько раз изменится частота и длина волны света при его преломлении?
Обсуждение
07.02.2021, 22:54
общий
это ответ
Здравствуйте, fonag777!
Совсем немного теории...
Показатель преломления воды относительно кварцевого стекла (плавленного кварца)
nВ,К=nK/nB (1)
где
- nK=c/vK (2) - абсолютный показатель преломления кварцевого стекла;
- nB=c/vB (3) - абсолютный показатель преломления воды;
- с=3*108м/с - скорость света в вакууме;
- vK=[$955$]K*[$957$] (5) - скорость света в кварцевом стекле;
- vB=[$955$]B*[$957$] (6) - скорость света в воде;
- [$955$] - длина волны в соответствующих средах;
- [$957$] - частота света.
1. Частота света не изменяется при переходе через границу раздела двух сред.
2. Меняется скорость и длина световой волны
nK/nB=vB/vК=[$955$]B/[$955$]К (7)
Яндекс дает значения
- nK=1,46
- nВ=1,33
Из формулы (7)
[$955$]B/[$955$]К=nK/nB=1,10
Таким образом, длина волны в воде, по сравнению с кварцевым стеклом, увеличилась в 1,1 раза
Совсем немного теории...
Показатель преломления воды относительно кварцевого стекла (плавленного кварца)
nВ,К=nK/nB (1)
где
- nK=c/vK (2) - абсолютный показатель преломления кварцевого стекла;
- nB=c/vB (3) - абсолютный показатель преломления воды;
- с=3*108м/с - скорость света в вакууме;
- vK=[$955$]K*[$957$] (5) - скорость света в кварцевом стекле;
- vB=[$955$]B*[$957$] (6) - скорость света в воде;
- [$955$] - длина волны в соответствующих средах;
- [$957$] - частота света.
1. Частота света не изменяется при переходе через границу раздела двух сред.
2. Меняется скорость и длина световой волны
nK/nB=vB/vК=[$955$]B/[$955$]К (7)
Яндекс дает значения
- nK=1,46
- nВ=1,33
Из формулы (7)
[$955$]B/[$955$]К=nK/nB=1,10
Таким образом, длина волны в воде, по сравнению с кварцевым стеклом, увеличилась в 1,1 раза
5
Об авторе:
С уважением
shvetski
С уважением
shvetski
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