The thermal neutron cross section of a proton is 0.33 bn. If this cross-section were to represent the circular cross-sectional area of the proton presented to the neutron beam, what would be the radius of the proton?
A)
1.2 x 10-15 m
B)
1.6 x 10-15 m
C)
3.2 x 10-15 m
D)
4.1 x 10-15 m
E)
5.2 x 10-15 m
C
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What will be an ideal response?
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