Suppose the magnitude of Nuclear force between two protons varies with the distance between them as shown in figure (4-Q1). Estimate the ratio "Nuclear force / Coulomb force" for (a) x = 8 fm (b) x = 4 fm, (c) x = 2 fm and (d) x = 1 fm (1 fm = 10–15 m).

We know coulomb’s force acting between two charges as –
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Also charge on proton
C
and constant K = ![]()
a. When
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b. When
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c. When
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d. When
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