![A radioactive element X has a half-life of 30 hours. It decays via alpha, beta and gamma emissions with](https://www.gkseries.com/blog/wp-content/uploads/2023/09/A-radioactive-element-X-has-a-half-life-of-30-hours.-It-decays-via-alpha-beta-and-gamma-emissions-with-.jpg)
Q. A radioactive element X has a half-life of 30 hours. It decays via alpha, beta and gamma emissions with the branching ratio for beta decay being 0.75. The partial half-life for beta decay in unit of hours is
Ans: 40
Sol:
![](https://www.gkseries.com/blog/wp-content/uploads/2023/09/Screenshot-793.png)
Q. A radioactive element X has a half-life of 30 hours. It decays via alpha, beta and gamma emissions with the branching ratio for beta decay being 0.75. The partial half-life for beta decay in unit of hours is
Ans: 40
Sol:
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