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The Intensity of a Radioactive Beam Is Measured at a Distance

Question 32

Multiple Choice

The intensity of a radioactive beam is measured at a distance of 100 cm and found to be 250 mR/min.What will the intensity of this beam be at 105 cm?


A) 226.8 mR/min
B) 238.1 mR/min
C) 262.5 mR/min
D) 275.6 mR/min

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