Physics 0625 · IGCSE · Transfer of thermal energy

Transfer of thermal energy — practice question

A hot metal plate is positioned close to a cold metal plate. Infra-red radiation transfers thermal energy between the two plates. Which colour would make the cold plate’s temperature rise most slowly?

  • Ahot plate: matt black, cold plate: matt black
  • Bhot plate: matt black, cold plate: shiny white
  • Chot plate: shiny white, cold plate: matt black
  • Dhot plate: shiny white, cold plate: shiny white

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