Ace the Spotlight Revision Test 2026 – Shine Bright and Conquer Your Exam!

This question tests how sunshine is recorded using instruments that respond to light and its duration, not to precipitation. The Campbell Stokes recorder uses a glass sphere to focus sunlight onto a card and burn a trace, directly mapping sunny periods. A digital sunshine sensor detects light and converts it into a signal that reflects sunshine duration or intensity. Burn marks on a card describe a similar idea of tracing sun exposure on a surface. In contrast, a rain gauge is designed to collect and measure rainfall and provides no data on sunshine. So the item that is not a method of recording sunshine is the rain gauge.