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The disintegration constant of radium wi...

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

A

`2.12xx10^(-4)yr^(-1)`

B

`4.33xx10^(-4)yr^(-1)`

C

`3.26xx10^(-3)yr^(-1)`

D

`4.33xx10^(-12)yr^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`lambda=(0.693)/(t_(1//2)`
`where,lambda="disintegration constant"=?`
`t_(1//2)=1600yr`
`therefore" "lambda=(0.0693)/(1600)=4.33xx10^(-4)" yr"^(-1)`
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