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2.3.3a Thermal radiation

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Question 35

Four identical metal cans are filled with the same volume of hot water at 85∘C85^\circ\text{C}85∘C and placed in a room at 18∘C18^\circ\text{C}18∘C. Each can has a different outer surface finish:

  • Can P: Matt black
  • Can Q: Shiny black
  • Can R: Matt white
  • Can S: Shiny silver

Which can will cool down at the slowest rate, keeping the water hot for the longest time?

A

Can P

B

Can Q

C

Can R

D

Can S

Markscheme

2.3.3a Thermal radiation Questions

  1. IGCSE
  2. /Physics
  3. /2.3.3a Thermal radiation

99 exam-style questions on CIE IGCSE Physics 2.3.3a Thermal radiation. Each one has a worked solution and a mark scheme showing where the marks go.

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