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Q.3

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 1235

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Short Answer

a. How do we know the strong force exists?

b. How do we know the strong force is short range?

As the nucleon is stable with positively charged particle, therefore there must be very strong attractive force existing inside the nucleus.

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Step by Step Solution

Subpart (a) part 1:

When positively charged particles are kept near to each other there must be some repulsive force. To overcome that repulsive force and be a stable nucleus, there must be a strong attractive force.

Subpart (b) Part 1:

This force exists only inside the nucleus, so the strong forces are short range forces.

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