The table gives the surface temperature of four stars and the wavelength at which each star emits radiation most intensely.
Table: Surface temperature and wavelength of most intense emission for four stars
| Star | Surface temperature in ∘C^\circ\text{C}∘C | Wavelength of most intense radiation in nm |
|---|---|---|
| W | 3000 | 890 |
| X | 5000 | 550 |
| Y | 8000 | 350 |
| Z | 12 000 | 240 |
What do these data show about a star with a higher surface temperature?
It emits its most intense radiation at the same wavelength.
It emits no radiation at all at the longer wavelengths.
It emits its most intense radiation at a shorter wavelength.
It emits its most intense radiation at a longer wavelength.
40 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.