A radioactive sample of U 238 decay to Pb through a process for which half life is 4.5 × × 10 9 years. The ratio of number of nuclei of Pb to U 238 after a time of 1.5 × × 10 9 years (given 2 1/3 = 1.26)
Text Solution
Verified by ExpertsThe correct answer is:
B
Here 
where 
Number of half lives 
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