The "<answer>photoelectrons</answer>" emitted as a result of the photoelectric effect have a certain kinetic energy, which can be measured. This kinetic energy (for each photoelectron) is independent of the intensity of the light, but depends linearly on the frequency; and if the frequency is too low (corresponding to a photon energy that is less than the work function of the material), no <answer>photoelectrons</answer> are emitted at all, unless a plurality of photons, whose energetic sum is greater than the energy of the <answer>photoelectrons</answer>, acts virtually simultaneously (multiphoton effect)  Assuming the frequency is high enough to cause the photoelectric effect, a rise in intensity of the light source causes more <answer>photoelectrons</answer> to be emitted with the same kinetic energy, rather than the same number of <answer>photoelectrons</answer> to be emitted with higher kinetic energy.
What is emitted as a result of the photoelectric effect?
photoelectrons