Physics 0625 · IGCSE · Transfer of thermal energy

Transfer of thermal energy — practice question

Why do houses in very hot countries often have their exterior walls painted white?

  • AWhite surfaces are good absorbers of infrared radiation.
  • BWhite surfaces are good emitters of infrared radiation.
  • CWhite surfaces are poor absorbers of infrared radiation.
  • DWhite surfaces are poor reflectors of infrared radiation.

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