Light is EM wave (like Radio Waves), how can I rectify light ( like every radio does with radio waves) ?

Question

Light is EM wave (like Radio Waves), how can I rectify light ( like  every radio does with radio waves)  ?

owlfred · Answer

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anonymous · Answer

wat does rectifying radio wave mean ?

anonymous · Answer

rectification is make AC to DC  = only positives (or only negatives) hafwaves

anonymous · Answer

That's to rectify an electrical signal.  Radio waves work on a different bandwidth.

anonymous · Answer

yea exactly craig. i guess radio don't 'rectify' radio waves , rather they demodulate modulated signal from the carrier radio wave and so work. if am wrong temme wer? learning is mutual :)

anonymous · Answer

the way of work is the same, radio has filter too to separate low frequencies from high frequencies ( thats demodulation), important is to let throu only positives halfwaves ( or only negateves halfwaves)