A radioactive substance has a half- life of 3 min. After 3 in minutes, the
amount of radioactive material remain was 0.25g. How much amount of radioactive material
was present in the sample initially?

Question

A radioactive substance has a half- life of 3 min. After 3 in minutes, the amount of radioactive material remain was 0.25g. How much amount of radioactive material was present in the sample initially?

Gaurav · Answer

Given, half life of radioactive element is 3 min. & Also given that after 3 min. It was 0.25gm So, initially amount is= 2×0.25=0.50gm

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A radioactive substance has a half- life of 3 min. After 3 in minutes, the amount of radioactive material remain was 0.25g. How much amount of radioactive material was present in the sample initially?

A radioactive substance has a half- life of 3 min. After 3 in minutes, the
amount of radioactive material remain was 0.25g. How much amount of radioactive material
was present in the sample initially?

1 Answers

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A radioactive substance has a half- life of 3 min. After 3 in minutes, the amount of radioactive material remain was 0.25g. How much amount of radioactive material was present in the sample initially?

A radioactive substance has a half- life of 3 min. After 3 in minutes, theamount of radioactive material remain was 0.25g. How much amount of radioactive materialwas present in the sample initially?

1 Answers

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A radioactive substance has a half- life of 3 min. After 3 in minutes, the
amount of radioactive material remain was 0.25g. How much amount of radioactive material
was present in the sample initially?