College of Admission Tests Multan

Nuclear Science

Solve the question of and select the option from the choices A through D/E. Check your Answer and view the explanation.

Question: 10

The age of most ancient geological formations is estimated by
  • Ra - Si method
  • Potassium-argon method
  • C14 method
  • Uranium-lead method

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Correct Answer: D

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Uranium-lead dating. Uranium-lead dating, abbreviated U–Pb dating, is one of the oldest and most refined of the radiometric dating schemes. It can be used to date rocks that formed and crystallized from about 1 million years to over 4.5 billion years ago with routine precisions in the 0.1–1 percent range.