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Question
Two protons exerts a nuclear force on each other, the distance between them is
Options:
A .  10−14m
B .  10−10m
C .  10−12m
D .  10−8m
Answer: Option A
:
A
From the options, only at a distance of 1014m the nuclear force will act. This is equal to ten Fermis, as 1 Fermi =1015m, and this falls within the short range within which it acts.

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