Physics 0625 · IGCSE · Transfer of thermal energy

Transfer of thermal energy — practice question

Four different surfaces are all at the same high temperature. Which surface emits thermal radiation at the lowest rate?

  • Ablack, dull, surface area $10\ \text{cm}^2$
  • Bblack, dull, surface area $100\ \text{cm}^2$
  • Cwhite, shiny, surface area $10\ \text{cm}^2$
  • Dwhite, shiny, surface area $100\ \text{cm}^2$

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI