Thank you. It just 'is'. Unfortunately (some) students (possibly because of the way the force fields are taught at high school level) seem to look for 'something' to be the 'cause' of the field's existence. Is there any useful analogy I can employ?
Is there a simple way of explaining to a senior high school student what (if anything) creates these scalar fields. At senior high school level: mass 'creates' the familiar Newtonian gravitational field; charge 'creates' a classical electric field...therefore what 'creates' the Higgs field...
Thank you. I now understand a bit more about the world. This was my first use of 'Physics Forums' and I am grateful that you were there with answers. Best wishes.
Thank you. Could it be argued that from the frame of reference of the distant galaxy, the uv photon arrives in a world (Earth) where all distances, times and mass are relativistically modified. Alternatively from the Earth's frame of reference, masses, distances and times are familiar but the...
Thank you. From the perspective of the source galaxy, the relevant information is the hf of the (uv) photon and the work function of zinc. How would einstein's photoelectric equation be modified if the zinc plate were receding? Is the 'work function' somehow 'modified'? I appreciate the time...
Thank you for your billiard ball analogy. It was very clear. However I am still confused. As seen from the distant receding galaxy, the photon is still a uv photon. What would an observer on the receding galaxy see when the photon hits the zinc plate on Earth? Would the photon, a uv photon...
Thank you for your reply. The photon reaching Earth (which how has less energy than the work function of the zinc) is not able to cause photoelectric emission. Would it have been able to cause photoelectric emission had it hit a zinc plate at the beginning of its journey?
Can I reverse the...
If an atom in a distant galaxy emits a uv photon, the photon would have had enough energy to cause photoelectric emission from a negatively charged zinc plate. By the time the photon reaches me on Earth it has been sufficiently 'redshifted' so that it could not cause photoelectric emission if...