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2.3.3a Thermal radiation

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Question 59

Why are the absorber plates in solar water heaters usually painted matt black?

A

Matt black surfaces are good reflectors of infrared radiation.

B

Matt black surfaces are poor emitters of infrared radiation.

C

Matt black surfaces are poor absorbers of infrared radiation.

D

Matt black surfaces are good absorbers of infrared radiation.

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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