The half-life period of radium is 1600 years. Its average life time wi – McqOptions

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1.	The half-life period of radium is 1600 years. Its average life time will be [MP PET/PMT 1988]
A.	3200 years
B.	4800 years
C.	2319 years
D.	4217 years
Answer» D. 4217 years

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