The activity of a radioactive material is 2.56 10^ -3 Ci. If the half life of the material is 5 days, after how many days the activity will become 2 10^ -5 Ci ?

JEE Main 2022 Physics question

The activity of a radioactive material is Ci. If the half life of the material is 5 days, after how many days the activity will become Ci ?

Answer: (2)

, so $/A = 2.56 × /(2 ×

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Question ID VK-035258