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Работа выхода електрона из золота равна 4,5 эВ. Найти красную границу фотоэффекта для золота
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Предмет:
Физика -
Автор:
gabrielharris - 5 лет назад
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Ответы 1
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Ответ:
Объяснение:
Предельная частота называется красной границей фотоэффекта.
ν_min=A/h
h=6,63*10^(-34) Дж*с - постоянная Планка
1 эВ=1,6*10^(-19) Дж
4,5 эВ=4,5*1,6*10^(-19) Дж=7,2*10^(-19) Дж
ν_min=7,2*10^(-19)/( 6,63*10^(-34) )= 7,2*10^(15)/6,63≈1,1*10^(15) Гц
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Автор:
burke - 5 лет назад
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Предмет:
Английский язык -
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