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Two radioactive materials A and B have d...

Two radioactive materials A and B have decay constants `10lambda and lambda`, respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of A of that of B will be `1//e` after a time :

A

`1/(9lambda)`

B

`1/(11lambda)`

C

`11/(10lambda)`

D

`1/(10lambda)`

Text Solution

Verified by Experts

The correct Answer is:
A
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