The ratio of the radius of a classical electron (re = kee2/mec2 = 2.8 × 10^-15 m) to the radius of a 4He nucleus (r = r0A1/3) is

a. 2.0
b. 0.68
c. 1.5
d. 0.92
e. 2.4


C

Physics & Space Science

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