What physical quantity does luminosity (LLL) represent for a star?
The energy per unit area received from the star.
The total energy received by an observer each second.
The total power emitted as electromagnetic radiation.
The surface temperature of the star’s emitting layer.
Flashcards for Edexcel A Level Physics Luminosity, intensity and distance, covering the key terms, definitions and equations you need to recall for Paper 1, Paper 2 and Paper 3. 21 cards, matched to the Edexcel A Level Physics (9PH0) specification.
