According to the "7:10 Rule of Thumb," if the exposure rate one hour after detonation of a nuclear weapon is 500 R/hr,

Question

Question: According to the "7:10 Rule of Thumb," if the exposure rate one hour after detonation of a nuclear weapon is 500 R/hr, the exposure rate approximately 14 days later (343 hours) will be approximately:

Options:

1.  50 R/hr
2.  5 R/hr
3.  0.5 R/hr
4.  0.05 R/hr

Answer 1

3. 0.5 R/hr

According to the "7:10 Rule of Thumb," if the exposure rate one hour after detonation of a nuclear weapon is 500 R/hr, the exposure rate approximately 14 days later (343 hours) will be approximately 0.5 R/hr.