The photoelectric effect was crucial in the development of modern physics because it demonstrated theSelect one:a.wave nature of the electron.b.localization of most of the mass of an atom in the nucleus.c.wave nature of light.d.particle nature of light.e.validity of the special theory of relativity.

How did Albert Einstein explain the photoelectric effect?A.Light is made of electrons.B.Light is made of atoms.C.Light is made of electricity.D.Light is made of photons.

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 wave nature of light is demonstrated by which of the following ?*1 pointThe photoelectric effectDiffractionColourThe speed of light

What did John Dalton publish?A.The plum-pudding atomic theoryB.A paper calculating the charge of an electronC.An early theory describing properties of atomsD.An explanation of the photoelectric effect

What happens to electrons in the photoelectric effect?A.They are made to orbit faster.B.They are knocked away from atoms.C.They are turned into light.D.They are added to atoms.