Physics, asked by msg18, 7 months ago

activity of a radioactive sample reduced from 20 to 1.25 in 2000 years the half life of the sample and its DK constant respectively​

Answers

Answered by xononxxx
4

Answer:

500 years

Explanation:

.........................................for decay constant use

lambda =0.693/half life time =0.693/500

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