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OpenStudy (anonymous):
what are photons ?
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OpenStudy (anonymous):
Quantums of electromagnetic qunatum field
OpenStudy (anonymous):
In classical Electromagnetism NO photons exist. Here Classical means without-field-quantization.
OpenStudy (anonymous):
Ths is the answr @divyam
OpenStudy (anonymous):
http://www.youtube.com/watch?v=qbM39XZMrNI&list=PL3B0924C6A0CB8B67&index=9&feature=plpp_video is not a bad explaination.
OpenStudy (anonymous):
it's a quanta( single pack) of an EM radiation.
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OpenStudy (anonymous):
@IsraelYkb fields have mass (because of their energy) and also have gravitational mass.
OpenStudy (anonymous):
Ok! I just remembered,tnx.
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