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Консультация № 200553
02.04.2021, 08:32
0.00 руб.
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3
1
Здравствуйте! Прошу помощи в следующем вопросе:
На щель шириной 0,05 мм падает нормально монохроматический свет. Под углом 20 наблюдается минимум четвертого порядка. Найти угловую ширину центрального максимума Δ𝜑. Рисунок оптической схемы обязателен. Покажите на рисунке распределение интенсивности света на экране, выделите угловую ширину центрального максимума Δ𝜑. (Δ𝜑=10).
Заранее благодарю.
На щель шириной 0,05 мм падает нормально монохроматический свет. Под углом 20 наблюдается минимум четвертого порядка. Найти угловую ширину центрального максимума Δ𝜑. Рисунок оптической схемы обязателен. Покажите на рисунке распределение интенсивности света на экране, выделите угловую ширину центрального максимума Δ𝜑. (Δ𝜑=10).
Заранее благодарю.
Обсуждение
03.04.2021, 22:53
общий
это ответ
Здравствуйте, Omrade!
Дано:
d=0,05 мм
[$966$]1=20[$186$]
k1=4
Найти: [$916$][$966$] (см.рис.)
Решение:
Имеем дифракцию Фраунгофера на одной щели.
Условие минимума
d*sin[$966$]=k[$955$]
Отсюда
[$955$]=(d*sin[$966$]1)/k1 (1)
Угловая ширина центрального максимума может быть определена как угол между двумя минимумами 1-го порядка (k2=1)
Тогда, аналогично выражению (1), можем записать
[$955$]=(d*sin([$916$][$966$]/2)/k2 (2)
Приравняем правые части (1) и (2), сократим на d,
Получаем
(sin[$966$]1)/k1 = (sin([$916$][$966$]/2))/k2
Sin20[$186$]/4 = sin([$916$][$966$]/2)
sin([$916$][$966$]/2) = 0.0855
[$916$][$966$]/2 [$8776$] 5[$176$]
[$916$][$966$] [$8776$] 10[$176$]
Удачи
Дано:
d=0,05 мм
[$966$]1=20[$186$]
k1=4
Найти: [$916$][$966$] (см.рис.)
Решение:
Имеем дифракцию Фраунгофера на одной щели.
Условие минимума
d*sin[$966$]=k[$955$]
Отсюда
[$955$]=(d*sin[$966$]1)/k1 (1)
Угловая ширина центрального максимума может быть определена как угол между двумя минимумами 1-го порядка (k2=1)
Тогда, аналогично выражению (1), можем записать
[$955$]=(d*sin([$916$][$966$]/2)/k2 (2)
Приравняем правые части (1) и (2), сократим на d,
Получаем
(sin[$966$]1)/k1 = (sin([$916$][$966$]/2))/k2
Sin20[$186$]/4 = sin([$916$][$966$]/2)
sin([$916$][$966$]/2) = 0.0855
[$916$][$966$]/2 [$8776$] 5[$176$]
[$916$][$966$] [$8776$] 10[$176$]
Удачи
5
Благодарю!
Об авторе:
С уважением
shvetski
С уважением
shvetski
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