In order to explain the results of a photoelectric effect experiment, quantum physics suggests that:(select all that apply)Question 3Answera.light energy is quantised (in the form of photons)b.electron energies are quantised into levelsc.electrons store the energy from several photons to build up and excite over time.d.electrons can interact with photons only on an all or nothing basise.electrons can absorb any energyf.electrons can only be ejected from a metal with an excess negative charge

The correct answers to explain the results of a photoelectric effect experiment according to quantum physics are:

a. Light energy is quantised (in the form of photons) b. Electron energies are quantised into levels d. Electrons can interact with photons only on an all or nothing basis

Explanation:

a. In the photoelectric effect, light energy is absorbed by electrons in a material which can cause them to be ejected from the material. This energy is quantised, meaning it comes in discrete amounts, called photons.

b. The energy levels of electrons in an atom are also quantised. This means that they can only exist at certain energy levels and not in between.

d. When an electron absorbs a photon, it either absorbs all the energy of the photon and gets ejected (if the energy of the photon is equal to or greater than the work function of the material), or it doesn't absorb the photon at all. This is the 'all or nothing' interaction.

The other options are incorrect:

c. Electrons do not store energy from several photons to build up and excite over time. Each interaction with a photon is independent.

e. Electrons cannot absorb any energy. The energy of the photon must be equal to or greater than the work function of the material for the electron to be ejected.

f. The ejection of electrons in the photoelectric effect is not dependent on the metal having an excess negative charge. It depends on the energy of the incoming photon.