Question

define strong nuclear force​

Answer 1

Explanation:

STRONG NUCLEAR FORCES:-

strong nuclear force is one of the four fundamental forces in nature; the other three are gravity, electromagnetism and the weak force. As its name implies, the strong force is the strongest force of the four. It is responsible for binding together the fundamental particles of matter to form larger particles.

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Answer 2

$\sf{\underline{\underline{Strong\:nuclear\:force-}}}$

It is the force which binds nucleons (protons and neutrons) in a nucleus. There should be a strong attractive force that counteracts the repulsive force to keep a nucleus stable. We know that gravitational force is negligible as compared to the electrostatic force. So, we have a new basic force, i.e., strong nuclear force, which is the strongest of all fundamental forces, about 100 times the electromagnetic force. It is same between force a proton and a neutron, a proton and a proton, a neutron and a neutron. It is an extremely short ranged force ( ≈ 10^(-15) m). It keeps the nucleus stable. It does not depend upon charge. Electron does not experience this force.

You will learn in higher classes that protons and neutrons are made up of more elementary constituents called quarks. We are normally not aware of nuclear forces as we do not come across bare nuclei in daily life. However, the phenomena like nuclear fission/fusion etc. involve these forces.