hshshhdh hshshhdh
  • 15-03-2024
  • Physics
contestada

Оцінити значення сталої Планка, якщо фотоелектрони, вирвані з поверхні металу світлом з довжиною хвилі 250 нм, затримуються напрутою 2 В, а вирвані світлом з частотою 2,4• 10'5 Гц - напругою 7 В.

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