At the risk of making my inexperience in quantum mechanics plainly obvious, I have a question to ask. Say you emit a photon from one side of a room. As i've come to learn, light is not only a particle, but a wave. Say there are two photomultipliers, both encompassed within the wave of light. Would that trigger both photomultipliers, or would it act like an electron does and "roll the quantum mechanical dice" so to speak, and hit one or the other out of pure probability?