The half-life of a radioactive isotope X...

The half-life of a radioactive isotope `X` is `50` yr. It decays to nother element `Y` which is stable. The two elements `X` and `Y` were found to be in the ratio of `1 : 15` in a sample of a give rock. The age of the rockwas estimated to be

`200 yr`

`250 yr`

`100 yr`

`150 yr`

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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-NUCLEAR PHYSICS-Exercise

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