Which row correctly identifies the primary nuclear fusion process occurring in the core of a main-sequence star like our Sun, and the region of the electromagnetic spectrum where its thermal emission spectrum peaks?
| Core Fusion Process | Peak Emission Region | |
|---|---|---|
| A | Hydrogen fusion into helium | Visible light |
| B | Hydrogen fusion into helium | X-ray radiation |
| C | Helium fusion into carbon | Visible light |
| D | Helium fusion into carbon | Ultraviolet radiation |
Row A
Row B
Row C
Row D
20 exam-style questions on CIE IGCSE Physics 6.2.1 The Sun as a star. Each one has a worked solution and a mark scheme showing where the marks go.