A change in which property of light will have no effect on whether or not the photoelectric effect occurs?

The photoelectric effect occurs only when the light’s frequency is high enough, meaning each photon has enough energy to exceed the material’s threshold. Changing intensity changes how many photons arrive, but it does not change the energy of each photon, so it does not determine whether emission can occur. Therefore, intensity is the property that has no effect on whether the effect occurs.

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