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1 markPaper 1 · Multiple choiceRadioactivity

CAPE Physics Unit 2 · 2016 · Paper 1 · Question Q45

In medicine, radioactive isotopes are often used as tracers to help in locating blockages in the human body. Which of the following isotopes would be MOST suitable for such an application?

  1. (A)Isotope: (A), Half-life: 2 minutes, Radiation Emitted: Beta
  2. (B)Isotope: (B), Half-life: 4 hours, Radiation Emitted: Alpha
  3. (C)Isotope: (C), Half-life: 5 hours, Radiation Emitted: Beta
  4. (D)Isotope: (D), Half-life: 20 minutes, Radiation Emitted: Alpha

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