In the VCAA 2009 paper there was a 3-mark question:
Spoiler
At the time of Young's double-slit experiment there were two competing models of the nature of light. Explain how Young's experiment supported one of these models compared with the other."
Assessment Report Comment:
Spoiler
Young’s experiment demonstrated interference effects, so his work supported the wave model of light. The particle model did not explain the interference effect.
Is a response like that enough for the whole 3 marks??
Also in general, for some 2-mark questions such as "What is the power dissipated in R
1?"
Obviously it's expected that there's some working out involved. But say you did the working out straight into your calculator, and got the right answer (no working out written down). Would you still obtain the full marks? (like for multiple choice questions)