The half-life of the radioactive radon is 3.8 days. The time
A freshly prepared radioactive source of half-life 2 h emits radiation of intensity which is 64 times the permissible safe level. The minimum time after which it would be possible to work safely with this source is
15
Sep
A freshly prepared radioactive source of half-life 2 h emits radiation of intensity which is 64 times the permissible safe level. The minimum time after which it would be possible to work safely with this source is at the end of which 1/20th of the radon sample will remain undecayed is (given log10e=0.4343) The half-life [...]
The half-life of the radioactive radon is 3.8 days. The time, at the end of which 1/20th of the radon sample will remain undecayed, is (given log10e=0.4343)
15
Sep
The half-life of the radioactive radon is 3.8 days. The time, at the end of which 1/20th of the radon sample will remain undecayed, is (given log10e=0.4343) at the end of which 1/20th of the radon sample will remain undecayed is (given log10e=0.4343) The half-life of the radioactive radon is 3.8 days. The time September [...]