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QAIPM-2014-Ph-1429: NEET 2014 Physics - Class 12 AIPM-2014-Ph-1429 Solution: A radioactive X with a half life \(1.4 10^9\) years decays to Y …

A radioactive X with a half life 1.4×1091.4 \times 10^9 years decays to Y which is stable. A sample of the rock from a cave was found to contain X and Y in the ratio 1:7. The age of the rock is 1.96×1091.96 \times 10^9 years 3.92×1093.92 \times 10^9 years 4.20×1094.20 \times 10^9 years 8.40×1098.40 \times 10^9 years

Multiple Choice Options

  • A 1.96 ×\times _ 10 9 years
  • B 3.92 ×\times _ 10 9 years
  • C 4.20 ×\times _ 10 9 years
  • D 8.40 ×\times _ 10 9 years

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