Question

what is strong force and weak interactions

Answer 1

Strong force, a fundamental interaction of nature that acts between subatomic particles of matter. The strong force binds quarks together in clusters to make more familiar subatomic particle, such as protons and neutrons.
weak interaction, a fundamental force of nature that underlies some forms of radioactivity, governs the decay of unstable subatomic particles such as mesons.

Answer 2

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The weak interaction acts between both quarks and leptons, whereas the strong force does not act between leptons. " Leptons have no color, so they do not participate in the strong interactions; neutrinos have no charge, so they experience no electromagnetic forces; but all of them join in the weak interactions."(