If c is the velocity of light in free space,t | vedclass

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(A) The properties of a photon are as follows:$1$. The energy of a photon is given by $E = h
u$,where $h$ is Planck's constant and $
u$ is the frequ

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$A, B, C$ and $D$ only

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(A) The properties of a photon are as follows:$1$. The energy of a photon is given by $E = h
u$,where $h$ is Planck's constant and $
u$ is the frequency. Thus,statement $A$ is correct.$2$. $A$ photon travels with the speed of light in free space,which is $c$. Thus,statement $B$ is correct.$3$. The momentum $p$ of a photon is related to its energy $E$ by $p = E/c$. Substituting $E = h
u$,we get $p = h
u/c$. Thus,statement $C$ is correct.$4$. In any collision,including a photon-electron collision (Compton scattering),both total energy and total momentum are conserved. Thus,statement $D$ is correct.$5$. $A$ photon is an electrically neutral particle,meaning it has zero charge. Thus,statement $E$ is incorrect.Therefore,statements $A, B, C,$ and $D$ are correct.

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