Two radioactive substances X and Y originally have \({N}_{\text{1}}\) and \({N}_{2}\) nuclei respectively. Half life of X is half of the life of Y. After three half lives of Y, number of nuclei of both are equal.The ratio \(\frac{{N}_{1}}{{N}_{2}}\) will be equal to:

[JEE Main 2021, 25 Feb (Shift 1)]

Question

Two radioactive substances X and Y originally have \({N}_{\text{1}}\) and \({N}_{2}\) nuclei respectively. Half life of X is half of the life of Y. After three half lives of Y, number of nuclei of both are equal.The ratio \(\frac{{N}_{1}}{{N}_{2}}\) will be equal to:

[JEE Main 2021, 25 Feb (Shift 1)]

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Two radioactive substances X and Y originally have \({N}_{\text{1}}\) and \({N}_{2}\) nuclei respectively. Half life of …

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