May/June 2026 Paper 22

2026 · 40 questions · 40 parts · 40 marks

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16Thermal Conduction Convection RadiationEasy1 mark
A warm black surface emits radiation. It is decided to increase the amount of radiation emitted. Which changes increase the amount of radiation emitted?
  1. 1
    making the surface hotter
  2. 2
    changing the colour of the surface to white
  3. 3
    decreasing the area of the surface