Light behaving as both wave and particle, the experiments that forced that conclusion, and why the speed of light reshaped the meaning of time.
These are the statements the Physics syllabus makes about Module 7: The Nature of Light. Dux records each one against the questions you answer, so you can see which of them you have actually been tested on and which have never been asked.
Light reflects, refracts, diffracts and interferes as a wave. Young's double slit and diffraction gratings give the interference evidence, and the pattern spacing is quantitative.
One continuous spectrum from radio to gamma, differing only in frequency and wavelength but behaving very differently in matter. Ordered by energy, not by speed, which is the same for all.
The photoelectric effect cannot be explained by a wave model, so light carries energy in discrete quanta. Threshold frequency and stopping voltage are the evidence; intensity and frequency play different roles.
The speed of light is the same for every observer, and everything else — time, length, mass and simultaneity — has to bend to keep it that way. Time dilation and length contraction follow from that single constraint.
Objects emit radiation across a continuous spectrum peaking at a wavelength set by temperature. Discrete line spectra, by contrast, identify the atoms present.
Polarisation is direct evidence that light is transverse. The transmitted intensity falls as the square of the cosine of the angle between analysers, which is testable data rather than a definition.
Measuring fringe spacing to calculate wavelength, and evaluating which measurement contributes most to the uncertainty in the result.
Using threshold frequency and stopping voltage data to determine Planck's constant and the work function, then judging whether the evidence supports a particle model.
HSC Physics - Trial Paper Shape is 100 marks in 180 minutes. Questions on Module 7: The Nature of Light are not one shape repeated: the command word decides what the marker is looking for, and the mark value decides how much of it. These are the ones Physics uses.
Dux writes practice for this module in exactly these shapes, so the drill is the same task the paper sets — not a general knowledge quiz with the module name on it.
Module 7: The Nature of Light is module 3 of 4 in Physics. Students routinely lose marks because a question spans two modules, so the neighbouring modules are worth reading next to this one.
Dux diagnoses Physics dot point by dot point, then writes questions in the shape this course marks. Written answers come back marked against the bands.