Two ratio active radii x and y initially contain an equal no.of atoms. Their half life are 1 hr, 2 hrs. The ratio of their rates of disintegra- tion after 2 hrs from the start is

Two ratio active radii x and y initially contain an equal no.of atoms.

1.	Two ratio active radii x and y initially contain an equal no.of atoms. Their half life are 1 hr, 2 hrs. The ratio of their rates of disintegra- tion after 2 hrs from the start is
Answer» `1:1` `1:2` `2:1` `1:3` ANSWER :A

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Two ratio active radii x and y initially contain an equal no.of atoms. Their half life are 1 hr, 2 hrs. The ratio of their rates of disintegra- tion after 2 hrs from the start is

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