physics

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1. give another advantage of using cobalt-60 in radiotherapy

  • it lasts all the time
  • has a half life of 6.3 years so it will not need replaced as much
  • has a half life of 5.3 years so it will not need replaced as much
  • it can be ordered in straight away
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2. what does beta radiation kill in the body

  • it will go through cm of cells
  • it will go through the chosen cell
  • it will go through m of cells
  • it will go through no cells

3. which type of radiation comes out of cobalt-60

  • alpha
  • gamma
  • beta

4. advantage of using cobalt-60 in radiotherapy

  • it is cheaper to use
  • it is easy to make in a nuclear reactor
  • it is easily made in a school lab
  • it can be made all the time

5. which type of radiation comes from iodine 131

  • beta and alpha
  • gamma
  • gamma and beta
  • gamma and alpha
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