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  3. initially contain equal number of nuclei x has a h

initially contain equal number of nuclei X has a half life of 1 hour and...

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initially contain equal number of nuclei X has a half life of 1 hour and Y has a half life of 2 hours After two hours the ratio of the activity of X to the activity of Y is A B C D 1 4 N N 1 2 Your Answer 1 1 Correct Answer 2 1 EXPLANATION No No 4

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