- #1
dark_vader93
- 5
- 0
There are 2 radioactive balls, which have the same radius and the same weight. They are covered with absorbing layer. They are made of diffrent materials, with other half-life. What is the easiest way to recognise which is which?
I had searched for the answer for a longer time and could not find out. Please for help.
I had searched for the answer for a longer time and could not find out. Please for help.