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The half - life of .(92)U^(238) against ...

The half - life of `._(92)U^(238)` against `alpha - decay` is `4.5 xx 10^(9)` years. How many disintegrations per second occur in 1 g of `._(92)U^(238)` ?

A

`1.532 xx 10 ^(4) s ^(-1)`

B

`1.325 xx 10^(4) s ^(-1)`

C

`1. 412 xx 10 ^(4) s ^(-1)`

D

`1. 235 xx 10 ^(4) s ^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
`N = (N_(0))/( 2 ^(n))`
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