A sample contains two radioactive nuclie `x` and `y` with half-lives `2` hour and `1` hour respectively. The nucleus `x`-decays to `y` and `y`-decays into a stable nucelus z.At t = 0, the activates of the components in the same were equal. Find the ratio of the number of the active , nuclei of `y` at `t = 4` hours to the number at `t = 0`.

A sample contains two radioactive nuclie `x` and `y` with half-lives `

1.	A sample contains two radioactive nuclie `x` and `y` with half-lives `2` hour and `1` hour respectively. The nucleus `x`-decays to `y` and `y`-decays into a stable nucelus z.At t = 0, the activates of the components in the same were equal. Find the ratio of the number of the active , nuclei of `y` at `t = 4` hours to the number at `t = 0`.
Answer» Correct Answer - `0.25`

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