A 300-Kg Child Receives 2

question 108

Multiple Choice

A 30.0-kg child receives 2.65 × 10⁷ β particles, each with an energy of 4.60 × 10^-13 J. If the RBE = 0.78, how many millirem did the child receive?

• A) 3.2 × 10^-7 millirem
• B) 5.2 × 10^-7 millirem
• C) 5.2 × 10^-4 millirem
• D) 3.2 × 10^-2 millirem
• E) None of these choices is correct.

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