half life of radium is 1580 years. Its a...

half life of radium is 1580 years. Its average life will be

A

`2.5 xx 10^3 `yr

B

`1.832 xx 10^3` yr

C

`2.275 xx 10^3 ` yr

D

`8.825 xx 10^2 ` yr

Verified by Experts

The correct Answer is:

C

Average life period = `1.44 xx t_(1//2)`
`1.44 xx 1580 = 2275.2 = 2.275 xx 10^3` yr

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