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If the Half-Value Layer for a Particular Energy Gamma Ray

Question 64

Multiple Choice

If the half-value layer for a particular energy gamma ray is 0.40 cm of lead.What fraction of a beam of these photons will penetrate 1.00 cm of lead?

A) 0.40
B) 0.18
C) 0.067
D) 0.60
E) 0.72

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