If a radioactive element having half-life of $30\min$ is undergoing beta decay, the fraction of radioactive element that remains undecayed after $90\min$ will be:

[JEE Main 2023, 29 Jan (Shift 1)]

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If a radioactive element having half-life of $30\min$ is undergoing beta decay, the fraction of radioactive element that remains undecayed after $90\min$ will be: [JEE Main 2023, 29 Jan (Shift 1)]

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If a radioactive element having half-life of \(30\min\) is undergoing beta decay, the fraction of radioactive element th…

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