In the photoelectric effect all the energy of the photon is considered to be absorbed in both freeing the electron and giving it Kinetic energy. But why can’t there be a lower frequency photon left over or residual energy absorbed by the material from which the electron came?
When horizontal light "bends" in an accelerating elevator is it following the geodesic line of a space curved by a gravitational equivalent or is it deflected, picking up a vertical component at the expense of the horizontal, though still going c.