Did photon obey Uncertainity Principle?

[sndtam]

Photon has no mass.So when we apply Uncertainity principle to photon
position*velocity*mass=greater than Plancks constant
So when we use mass as null,the equation implies that 0<h.
That is h is negative.But h is positive.
Please explain me this.

 

[xepma]

The uncertainty relation follows from the commutation relation of the momentum and position operators. The photon does not carry a mass, but it does carry a momentum.

 

[humanino]

velocity*mass

This is not momentum. This is an approximation of momentum at low velocity. The correct dispersion relations for the massless particles as the photon is
E=pc=\hbar\omega=\hbar c k

 

[ZapperZ]

Photon has no mass.So when we apply Uncertainity principle to photon
position*velocity*mass=greater than Plancks constant
So when we use mass as null,the equation implies that 0<h.
That is h is negative.But h is positive.
Please explain me this.

The single-slit diffraction phenomenon is the clearest example of photons "obeying" the HUP.

Zz.

 

[sndtam]

Thank you

 

[Naty1]

As far as we know, everything obeys quantum principles...including HUP...

 

[maverick_starstrider]

As far as we know, everything obeys quantum principles...including HUP...

I refuse to obey your quantum principles ;)

 

[sndtam]

Thanks a lot

 

[scott.ager]

I refuse to obey your quantum principles ;)

A smart dope is in direct violation of my HUP.

- Werner