Do Photons Have Angular Momentum. Light is composed of photons, so we could ask if the photon has mass. Web answer (1 of 2):
PPT The Angular Momentum of Gauge Fields The Case of Twisted Photons - image credit : www.slideserve.com
The photons are bosons and can have an integral angular momentum ( ie 0, 1, 2,.) in units of planck's constant h. Web photons have zero mass, which allows them to travel at the fastest possible speed in the universe, the speed of light. From the relativistic relationships among energy, mass, and momentum, e 2 = (m o c 2) 2 + (pc).
PPT The Angular Momentum of Gauge Fields The Case of Twisted Photons
Web you could have a wave with displacements in each of the directions at right angles to the propagation direction, and it can have angular momentum. Web during this effect, momentum, as well as energy, is conserved. Web photons have zero mass, which allows them to travel at the fastest possible speed in the universe, the speed of light. Web in general, physics is good at answering what and how questions, it doesn't do very well at answering why questions except reductively or tautologically.
