The table gives the peak wavelengths of thermal radiation emitted by three identical surfaces.
| Surface | Peak wavelength |
|---|---|
| P | 8.0 μm8.0\,\mu\mathrm{m}8.0μm |
| Q | 5.0 μm5.0\,\mu\mathrm{m}5.0μm |
| R | 12.0 μm12.0\,\mu\mathrm{m}12.0μm |
Which lists the surfaces in order of increasing temperature and identifies the surface with the greatest total emitted intensity?
R, P, Q; greatest intensity from R
Q, P, R; greatest intensity from R
R, P, Q; greatest intensity from Q
Q, P, R; greatest intensity from Q
96 exam-style questions on Edexcel GCSE Physics 5.3 Black body radiation, covering 5.3.1 Emission of radiation and temperature, 5.3.2 Radiation balance and constant temperature, and 5.3.3 The temperature of the Earth. Each one has a worked solution and a mark scheme showing where the marks go.