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The half life of a radioactive substance is 20 minutes

Q. The half life of a radioactive substance is 20 minutes. In how much time does the activity of a substance drop to 1/16 of its initial value?

(1) 20 minutes

(2) 40 minutes

(3) 60 minutes

(4) 80 minutes                                                (NEET-2023)

 

 

Aditya Bhatt Answered question 8 February 2024
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