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6.3 Black body radiation

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Question 23

After separate braking tests, a spectrometer measures the thermal radiation emitted by brake discs P and Q.

The peak wavelength of the radiation from disc P is shorter than the peak wavelength of the radiation from disc Q.

Which conclusion about the temperatures of the discs is correct?

[1]
A

Disc Q has a higher temperature than disc P.

B

The temperatures cannot be compared using the peak wavelengths.

C

Disc P has a higher temperature than disc Q.

D

Disc P and disc Q have the same temperature.

Markscheme

6.3 Black body radiation Questions

  1. GCSE
  2. /Physics
  3. /6.3 Black body radiation

106 exam-style questions on AQA GCSE Physics 6.3 Black body radiation, covering 6.3.1 Emission and absorption of infrared radiation and 6.3.2 Perfect black bodies and radiation. Each one has a worked solution and a mark scheme showing where the marks go.

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