Two radioactive elements `X` and `Y` half-live pf `50` and `100` minute respectiv ely. Intial sample of both the elements have same number of atoms. The ratio of the reamaining number of atoms of `X` and `Y` after 20 minute is:A. `2`B. `1//2`C. `4`D. `1//4`

Two radioactive elements `X` and `Y` half-live pf `50` and `100` minut

1.	Two radioactive elements `X` and `Y` half-live pf `50` and `100` minute respectiv ely. Intial sample of both the elements have same number of atoms. The ratio of the reamaining number of atoms of `X` and `Y` after 20 minute is:A. `2`B. `1//2`C. `4`D. `1//4`
Answer» Correct Answer - `(d)` For `X:200 = (2.303xx50)/(0.693) log ((a)/(x_(1)))` For `Y: 200 = (2.303xx100)/(0.693) log ((a)/(x_(2)))` `:. (x_(1))/(x_(2)) = (1)/(4)`

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