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Q. |
If the radiation intensity is 1 Gy/h (100 R/h) at a distance of 152.4 cm (5 feet) from a source, what is the intensity at 610 cm (20 feet)? |
A. | 0.0625 Gy/h (6.25 R/h) |
B. | 0.25 Gy/h (25 R/h) |
C. | 16 Gy/h (1600 R/h) |
D. | 4 Gy/h (400 R/h) |
Answer» A. 0.0625 Gy/h (6.25 R/h) |
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