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Detecting photons


OConnor_LFC

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How can we detect photons without mass ?

 

In the experiment that was showing two photons hitting the detector when only 1 was fired through the slit, how did technology detect photons without mass to hit the detector ?

 

 

Photons have energy and momentum, and transfer this to the target when they interact.

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the experiment that was showing two photons hitting the detector when only 1 was fired through the slit

I doubt that.

No mass: maybe "hit" the detector is misleading. The photon bring an electric field that moves one or more electron. The effect on an electron is detected.

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