Nuclear Physics And Radioactivity Question 254
Question: A radioactive material decays by $ \beta $ - particle emission. During the first 2 seconds of a measurement, $ n\beta $ -particles are emitted and in the next 2 seconds 0.75 $ n\beta $ - particles are emitted. Calculate the mean-life (in sec) of this material in seconds to the nearest whole number. $ (\ell n3=1.0986and\ell n2=0.6931). $
Solution:
Answer: 6.95
BETA
