Quantum mechanical spin is basically intrinsic angular momentum which every elementary particle and composite particle possesses. There are two terms to be explained. First- intrinsic. Intrinsic property is a property which the object referred to possesses by itself, it is inherent where as an extrinsic property is something which is not inherent. For instance, mass is an intrinsic property whereas weight is an extrinsic property. Just like mass, charge and spin are also intrinsic properties. Second term to explain is angular momentum. So, what is momentum? By the term momentum, we simply mean linear momentum which is something an object possesses when it moves along a straight line. Linear momentum = mass * velocity, or simply, p = mv Formula of linear momentum Note: those arrows signify that they are vectors Angular momentum is something which an object possesses when it spins on its axis or around any object. Angular momentum = mass * tangential velocity * radius of rotation, o...
Physics explained simply
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