cse • paper_2 • nuclear_particlecse-1990-subject-07-004
Radioactive activity — UPSC CSE 1990 Physics PYQ
Buy PYQ Solution Manual →Radium has a half-life of 1600 years and the daughter nucleus Radon also decays with a half-life of 3.82 days. In an enclosure containing radium and radon gas, the amount of radon appears to be constant for observations extending over a week. Explain this and calculate the ratio of the numbers of radium nuclei. Will the amount of radon remain the same even after 400 years?
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