use N/No=(1/2)1/T1/2 T1/2=t2 - t1 t(mean)=T1/2/0.693
100) At a given time there are 25%?undecayed nuclei in a sample. After 10 seconds number of undecayed nuclei reduces to 12.5%. Then mean life of the nuclei will be about
Answer is:
15 sec
Explanation:
Related Atoms and Nuclei MCQ with Answers
Answer is:
1080
Explanation:
let' s say C disintegrates in to A and B and initialy let's say 4units of C existed .After 1620 years 1 unit of a and 0.5of B would remain and in another 810 years A will become 0.75 and B will become 0.25 which adds up to 1 which is 1 /4 OF initial amount totally 2430 years would have passed
Answer is:
gamma rays
Explanation:
gamma radiations has the least wave length?
Answer is:
density
Explanation:
As the mass number A increases, density related to a nucleus does not change
Answer is:
gamma rays
Explanation:
In gamma rays decays does the element not change