Half life of radioactive sample undergoi...

Half life of radioactive sample undergoing alpha decayis 1.4 x 10^17s. If number of nuclei in sample is 2.0 x 10^21 activity of sample is nearly

A

`10^(5)Bq`

B

`10^(6)Bq`

C

`10^(3)Bq`

D

`10^(4)Bq`

Text Solution

Verified by Experts

R=Activity of the sample `=lamdaN=0.693/TxxN`
`R=0.693/(1.4xx10^(15))xx2xx10^(21)=10^(4)`

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