Problem P. 4379. (October 2011)
P. 4379. The atomic mass number of Radium is A=226, its halflife is 1622 years. What is the activity of 1 g Radium? (Earlier this was the base of the unit of activity: 1 curie was the activity of 1 g radium.)
(3 pont)
Deadline expired on November 10, 2011.
Sorry, the solution is available only in Hungarian. Google translation
Megoldás. Kb. \(\displaystyle 3{,}6\cdot 10^{10}~\)Bq.
Statistics:
94 students sent a solution. 3 points: 69 students. 2 points: 8 students. 1 point: 16 students. 0 point: 1 student.
Problems in Physics of KöMaL, October 2011