Physics 5054 · O Level · Radiation

Radiation — practice question

Four similar metal plates are placed at equal distances from a heater that gives out infra-red radiation. The plates are coated dull black, dull white, shiny black and shiny white. Which plate absorbs the greatest amount of radiation and which plate reflects the greatest amount of radiation?

  • Aabsorbs most: dull black; reflects most: dull white
  • Babsorbs most: dull black; reflects most: shiny white
  • Cabsorbs most: shiny black; reflects most: dull black
  • Dabsorbs most: shiny white; reflects most: dull black

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