Sunday, August 24, 2014

When photons are emitted, do they accelerate to reach the speed of light?



Photons are considered mass-less particle with a specific velocity but according to the electromagnetic theory, a photon is considered to have both energy and momentum. So what happen when they are emitted, do they accelerate to reach the speed of light or is it somehow instantaneous?




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classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

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