W ha t a re p ho to ns? A p ho to n is a n e le m enta ry p artic le o f th e u niv e rs e . In p hys ic s, it r e pre se nts th e q ua ntu m o f th e e le ctr o m agne tic fie ld a nd th ...

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W ha t a re p ho to ns?
A p ho to n is a n e le m enta ry p artic le o f th e u niv e rs e . In p hys ic s, it r e pre se nts th e q ua ntu m o f th e e le ctr o m agne tic fie ld a nd
th us th e b asic " u nit" o f e le ctr o m agne tic r a dia tio n, in clu d in g li g ht. It is a ls o th e fo rc e c a rrie r fo r th e e le ctr o m agne ti