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At any instant, the ratio of the amount ...

At any instant, the ratio of the amount of radioactive substance is 2: 1. If their half-lives be respectively 12 and 16 hours then after two days, what will be the ratio of the substances ?

A

`1:1`

B

`2:1`

C

`1:2`

D

`1:4`

Text Solution

Verified by Experts

The correct Answer is:
A
`N_(1)/N_(2)=(2N_(0) e^(-(ln2)/(12) xx48))/(N_(0) e^(-(ln2)/(16) xx 48)) =1 therefore lambda=(ln 2)/(T)`
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