問題詳情

11. Which of the following statements on radioactive decays is true?
(A) The rate of decary

is proportional to the number of undeeayed substance.
(B) The rate of decay 

 is proportional to the half-life of the undecayed substance.
(C) The decay constant is proportional to the half-life of the undecayed substance.
(D) The half-life of a substance decreases with time.
(E) None of the above. 

參考答案

答案：A
難度：計算中-1
書單：沒有書單，新增