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MMLU-Pro / 10242 / A sample of a radioactive material contains one million radioactive nuclei. The…

Problem

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question

A sample of a radioactive material contains one million radioactive nuclei. The half-life is 20 sec. How many nuclei remain after 10 sec?

category

physics

options

  1. 750,000 nuclei
  2. 900,000 nuclei
  3. 250,000 nuclei
  4. 800,000 nuclei
  5. 600,000 nuclei
  6. 350,000 nuclei
  7. 707,000 nuclei
  8. 1,000,000 nuclei
  9. 500,000 nuclei
  10. 650,000 nuclei

src

stemez-Physics

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