Uploaded September 2013 | Updated September 2026, 2 weeks ago

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Continuation of: youtu.be/W-_4zOYTIVU

The electron with spin 1/2 is a prototype of the fermions which obey the exclusion principle. Conservation of angular momentum requires that the photon have spin 1. The photon is a prototype of the bosons which do not obey the exclusion principle.

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Quantum Mechanics playlist: youtube.com/playlist?list=PL193BC0532FE7B02C