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N(1) atoms of a radioactive element emit...

`N_(1)` atoms of a radioactive element emit `N_(2)` "beta" particles per second The decay constant of the element is (in` s^(-1))`

A

`N_(1)//N_2`

B

`N_2//N_1`

C

`N_1(In2)`

D

`N_2(In2)`

Text Solution

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The correct Answer is:
B
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