Fill in the blanks with appropriate items : The `alpha` -activity of `1 gm .^(226) Ra. (t_(1//2)=1620 ` year) is _______ dpm.
Fill in the blanks with appropriate items :
The `alpha` -activity of `1 gm .^(226) Ra. (t_(1//2)=1620 ` year) is _______ dpm.
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Correct Answer - `2.16 xx 10^(12) dpm`
`A=N lambda =((1)/(226)xxN_(A)) xx(0.693)/(1620 xx12 xx24xx30xx60)`
`2.16 xx 10^(-12)` d.p.m
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