2024HSCQ2Which of the following provides evidence for the model of light proposed by Huygens? A. Emission spectra B. Diffraction of light C. Black-body radiation D. The photoelectric effect1 markMultiple choice
2024TrialQ11At what angle, θ\thetaθ, should two polaroid sheets be placed to reduce the intensity by ninety percent? A. B. C. D.
2024HSCQ32Many scientists have performed experiments to explore the interaction of light and matter. Analyse how evidence from at least THREE such experiments has contributed to our understanding of physics.8 marksExtended response
2023TrialQ17Which statement correctly matches Malus’ Law? (A) The intensity of polarised light entering an analyser is directly proportional to the cosine squared of the angle between the polariser and the analyser. (B) The intensity of polarised light entering an analyser is inversely proportional to the cosine squared of the angle between the polariser and the analyser. (C) The intensity of non-polarised light entering an analyser is directly proportional to the cosine squared of the angle between the polariser and the analyser. (D) The intensity of non-polarised light entering an analyser is inversely proportional to the cosine squared of the angle between the polariser and the analyser.1 markMultiple choice