Q.3:(a) Briefly describe the radioactivity phenomena with examples. (b) The counting rate of a radioactive source...

Q.3:(a) Briefly describe the radioactivity phenomena with examples.

(b) The counting rate of a radioactive source in the beginning (t=0) is 4000 counts/s. After 10 seconds the counting rate drops to 1000/s.

(i) What is the half-life of the radioactive source?

(ii) What will be counting rate after 20 s?

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genius_generous answered 1 year ago

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