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Question: If the Exposure rate due to radioactive fallout is 60 R/hr five hours after detonation, the exposure rate expected after 35 hours is:

Options:

  1.  2 R/hr
  2.  6 R/hr
  3.  30 R/hr
  4.  40 R/hr

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2.  6 R/hr

If the exposure rate due to radioactive fallout is 60 R/hr five hours after detonation, the exposure rate expected after 35 hours is 6 R/hr.

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