OCR 2023 GCSE Physics B Twenty First Century Science J259/04: Depth in physics (Higher Tier) Question Paper & Mark Scheme (Merged)

2 © OCR 2023 1 A student investigates the path of light passing through a triangular glass prism. A narrow beam of white light is directed at the prism with an angle of incidence equal to 40°. The student observes a spectrum of different coloured light. Narrow beam of white light Spectrum of coloured light The two-dimensional diagram shows a narrow beam of white light directed at the side of a prism. A line showing the path of a ray of blue light passing through the prism is partially drawn. Narrow beam of white light (a) Complete the line to show the path of blue light as it passes out the other side. [1] (b) Estimate the size of the angle of refraction of the ray of blue light as it enters the prism. Angle of refraction =.........................................................° [1] (c) Add another line to the diagram to show the path of a ray of red light as it passes through the prism and out the other side. [2] Normal 40° Blue 3 © OCR 2023 Turn over Trolley 2 Jamal is making a model aeroplane that can be launched from a moving trolley. One end of a spring is connected to the trolley. The other end of the spring is held stationary. Aeroplane Stretched spring The aeroplane is placed on the trolley. Jamal pulls the trolley and the aeroplane to the right so that the spring stretches. When Jamal lets go, the trolley and the aerop