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
101) 90%?of a radioactive sample is left undisintegrated after time ? has elapsed, what percentage of initial sample will decay in a total time2?",9%,38%,19%,62%,0.19,use N/No=(1/2)n,, 102,102,A radio-active element has half life of 15 yrs. What is the fraction that will decay in 30 yrs?.,0.75,0.85,0.5,0.25,0.75,use N/No=(1/2)n,, 103,103,A radioactive material decays by simultaneous emission of two particles with respective half lives 1620 and 810 years. The time in
Answer is:
1080
Explanation:
Related Atoms and Nuclei MCQ with Answers
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
Answer is:
both charge and mass number
Explanation:
In any nuclear reaction the reactants and the resultants must always be in conformity with the law of conservation of both charge and mass number