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A sample Q has half life 20 min. It decays by emitting alpha particle and beta particle with probability of 60% and 40% respectively.Initial sample of Q contains 1000 nuclei, then number of α− particle decay after one hour will be

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A sample Q has half life 20 min. It decays by emitting alpha particle and beta particle with probability of 60% and 40% respectively.

Initial sample of Q contains 1000 nuclei, then number of α particle decay after one hour will be



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