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HNQ
12:28 AM
2
Q: Do photons take all paths or not?

Árpád SzendreiThere are a lot of questions about this topic on this site, none of them answer my question specifically. I have read this question: What does a photon emitted by an atom "look" like? I think of the emitted photon as a point particle (but with a polarization vector) traveling in a straight line ...

 
 
4 hours later…
HNQ
4:12 AM
3
Q: If a photon takes all possible paths, does it travel faster than light?

JonasLet's assume we are in a perfect vacuum and let a photon travel from a point $A$ to a point $B$. As far as my understanding of quantum physics goes, the photon takes all possible paths between $A$ and $B$, as shown in this picture: Here, I have drawn 3 possible paths $a$, $b$ and $c$. Path $a$ g...

 
 
10 hours later…
HNQ
1:43 PM
3
Q: Relation between velocity of a electron (In the Bohr model of the atom) and the radius

JustTolerateMeSo we can derive this expression by equating force of attraction on the electron by the nucleus to the centripetal force acting on the electron, i.e: $$ \frac{KZe^2}{r^2}= \frac{mv^2}{r},$$ where $m$ is the mass and $e$ is the charge on the electron, $Z$ is atomic no. of the $H$-like particle, $K...

 

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