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2.3.3a Thermal radiation

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Question 2

Four identical metal containers are filled with the same volume of water at 85 ∘C85\ ^\circ\text{C}85 ∘C. The containers are then placed in a room at a temperature of 21 ∘C21\ ^\circ\text{C}21 ∘C. The containers are identical except for the texture and colour of their surfaces.

Which surface will emit thermal radiation at the slowest rate?

A

dull black

B

shiny black

C

dull white

D

shiny white

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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