NEET Physics Nuclei Questions Solved


Half life of Bi210 is 5 days. If we start with 50,000
atoms of this isotope, the number of atoms left over after 10
days is 
(a) 5,000                (b) 25,000
(c) 12,500              (d) 20,000

(c) Nt=N012t/T=500001210/5=12500

Difficulty Level:

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