An astrophysicist analyses the thermal radiation emitted by a laboratory sample of simulated lunar basalt heated to a constant high temperature.
The graph in Figure 1 shows the spectral radiance, III, of the emitted radiation plotted against its wavelength, λ\lambdaλ.
Describe how the spectral radiance of the thermal radiation changes as the wavelength increases.
Thermal radiation and energy balance Questions
Practise Edexcel GCSE Physics Thermal radiation and energy balance with exam-style questions for Foundation and Higher tier. 46 questions, matched to the Edexcel GCSE Physics (1PH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.