Friday 30 October 2020

electromagnetism - Can a wire having a $610$-$670$ THz (frequency of blue light) AC frequency supply, generate blue light?


We know that when we give alternating current across a wire then it will generate an electromagnetic wave which propagates outward.



But if we have a supply which can generate 610 to 670 terahertz of alternating current supply then does the wire generate blue light?




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