The half-life of radioactive Polonium (Po) is 138.6 days. For ten lakh – McqOptions

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1.	The half-life of radioactive Polonium (Po) is 138.6 days. For ten lakh Polonium atoms, the number of disintegrations in 24 hours is [Roorkee 1999]
A.	2000
B.	3000
C.	4000
D.	5000
Answer» E.

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