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Two radioactive substances X and Y initi...

Two radioactive substances `X` and `Y` initially contain an equal number of atoms. Their half-lives are `1` hour and `2` hours respectively. Then the ratio of their rates of disintergration after two hours is

A

`1:1`

B

`2:1`

C

`1:2`

D

`2:3`

Text Solution

Verified by Experts

The correct Answer is:
A
`A = lamda N`
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