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A sample of radioactive material has mas...

A sample of radioactive material has mass `m`, decay constant `lambda`, and molecular weight `M`. Avogadro constant `=N_(A)`. The initial activity of the sample is:

A

`lamda m`

B

`(lamda m)/(M)`

C

`(lamda m N_(A))/(M)`

D

`m N _(A)e ^(lamda )`

Text Solution

Verified by Experts

The correct Answer is:
C
Active `= lamda N ` where `N = (N_(A) m)/(M)`
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