The half life of radium is about 1600 years. Of 100 g of radium existing now, 25 g will…
Physics · JEE Main · NTA Exams — Atoms and Nuclei
The half life of radium is about 1600 years. Of 100 g of radium existing now, 25 g will remain unchanged after
- 2400 yrs
- 3200 yrs
- 4800 yrs
- 6400 yrs
Answer
(B) 3200 yrs
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