[HIGGSBOSONS]

Hello,
It Is Known Phenomena That When Ever Photon Or Light Passes Through Some Medium Loses It Constant Speed And Slows Down But As It Leaves The Medium It Regain Its Speed How It Is Possible.

I Have Another Question Which Is About Seeing Things. Teachers Tell Student That We See Things When Light Or Photon Reflect From That Object And Enter In Our Eyes. I Want Ask When Photon Enter Our Eyes It Give The Image Of Object But After That Where That Photon Gone.
As Dleviwing Mention That Photon Is Not Real Particles. They Only Observes As Energy Packets Or Photons When They Are Absorsed Or Emitted But I Read In The Book "facts And Mysteries Of Particle Physics" That According To Plancks Only Light Emitted In The Form Of Photons But Acorrding To Einstein Not Only Emitted Light Is Observed As Photons , Whole Light Is Propagates Through Space Or Medium In The Form Of Photons.

How Electric And Magnetic Components Are Prependicular To Each Other? What Is Concept Of Mass Shell.