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Консультация № 202586
13.04.2022, 09:48
0.00 руб.
0
2
1
Здравствуйте, уважаемые эксперты! Прошу вас ответить на следующий вопрос:
Радиоактивный образец, содержащий изотоп с периодом полураспада T, поместили в герметичный сосуд. Через какое время t1 распадётся 60% радиоактивных ядер этого изотопа? T= 2 мин.
Варианты ответа: а) 159 с; б) 259 с; в) 359 с; г) 459 с; д) 559 с
Радиоактивный образец, содержащий изотоп с периодом полураспада T, поместили в герметичный сосуд. Через какое время t1 распадётся 60% радиоактивных ядер этого изотопа? T= 2 мин.
Варианты ответа: а) 159 с; б) 259 с; в) 359 с; г) 459 с; д) 559 с
Обсуждение
13.04.2022, 10:51
общий
это ответ
Здравствуйте, Дмитрий!
Предлагаю Вам следующее решение задачи.
Дано:
с -- период полураспада изотопа; 
-- отношение количества 
нераспавшихся радиоактивных ядер изотопа к начальному количеству 
Определить:
-- время, через которое распадутся 
первоначального количества радиоактивных ядер изотопа.
Имеем
(с).
Ответ:
с.
Предлагаю Вам следующее решение задачи.
Дано:
с -- период полураспада изотопа; -- отношение количества нераспавшихся радиоактивных ядер изотопа к начальному количеству Определить:
-- время, через которое распадутся первоначального количества радиоактивных ядер изотопа. Решение
Имеем
(с).Ответ:
с.
5
Об авторе:
Facta loquuntur.
Facta loquuntur.
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