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MODULE3 RADT117 EXAM
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---12April 20252024/2025A+
- The exposure rate to a body 3 feet from a source of radiation is 16 R/hour. 
What distance from the source would be necessary to decrease the exposure 
to 6 R/hour? 
5 feet 
7 feet 
10 feet 
14 feet - CorreCt Answers -5 feet 
At a distance of 100 cm the intensity of radiation per unit area is 900mR 
per sec. What will the intensity be if the unit area is moved to a distance of 
300 cm from the point source of the radiant energy? 
100 mR 
300 mR 
2.7 R 
8.1 R - CorreCt Answers -100mR 
If the expo...
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