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Консультация № 194817
27.02.2019, 21:36
0.00 руб.
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Здравствуйте, уважаемые эксперты! Прошу вас ответить на следующий вопрос:
2.4. На непрозрачную преграду с круглым отверстием падает плоская световая волна длина λ=600 нм . Изменяя расстояние между преградой и экраном наблюдают два последовательных минимума интенсивности при значениях b1=1,05 м и b2=0,70 м. Чему равен диаметр отверстия? При каком максимальном значении bm на экране еще удается получить темное пятно?
2.4. На непрозрачную преграду с круглым отверстием падает плоская световая волна длина λ=600 нм . Изменяя расстояние между преградой и экраном наблюдают два последовательных минимума интенсивности при значениях b1=1,05 м и b2=0,70 м. Чему равен диаметр отверстия? При каком максимальном значении bm на экране еще удается получить темное пятно?
Обсуждение
04.03.2019, 06:25
общий
это ответ
Здравствуйте, lenocvol!
При падении плоской световой волны длиной [$955$] через круглое отверстие диаметром d на экран. находящийся на расстоянии b, предельные значения интенсивности в центральной точке будут наблюдаться при
причём при чётных k будет наблюдаться минимум (тёмное пятно), а при нечётных - максимум (светлое пятно).
Диаметр отверстия будет соответственно равен
при любом k
В данном случае два последовательных минимума интенсивности наблюдаются при значениях, отличающихся в 1.5 раза, что соответствует k=4 и k=6, то есть b[sub]4[/sub] = 1.05 м, b[sub]6[/sub] = 0.7 м и диаметр отверстия при длине волны [$955$] = 600 нм = 6[$183$]10[sup]-7[/sup] м равен
Первый минимум интенсивности получится при k = 2 и соответствующем расстоянии b[sub]2[/sub] = 2b[sub]4[/sub] = 2.1 м.
При падении плоской световой волны длиной [$955$] через круглое отверстие диаметром d на экран. находящийся на расстоянии b, предельные значения интенсивности в центральной точке будут наблюдаться при
причём при чётных k будет наблюдаться минимум (тёмное пятно), а при нечётных - максимум (светлое пятно).
Диаметр отверстия будет соответственно равен
при любом k
В данном случае два последовательных минимума интенсивности наблюдаются при значениях, отличающихся в 1.5 раза, что соответствует k=4 и k=6, то есть b[sub]4[/sub] = 1.05 м, b[sub]6[/sub] = 0.7 м и диаметр отверстия при длине волны [$955$] = 600 нм = 6[$183$]10[sup]-7[/sup] м равен
Первый минимум интенсивности получится при k = 2 и соответствующем расстоянии b[sub]2[/sub] = 2b[sub]4[/sub] = 2.1 м.
Форма ответа
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