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The disintegration constant of radium wi...

The disintegration constant of radium with half-life 1600 yr is

A

`2.12 xx 10^(-4) year^(-1)`

B

`4.33 xx 10^(-4) year^(-1)`

C

`3.26 xx 10^(-3) year^(-1)`

D

`4.33 xx 10^(-12) year^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`k = (0.693)/(t_(1//2)) = (0.693)/(1600) = 4.33 xx 10^(-4) "years"^(-1)`
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