Astronomy and cosmology

Lessons in this chapter

• Standard candles and luminosityCoursebook 31.1 (9702 A Level)🎯 Practice
• Luminosity and radiant flux intensityCoursebook 31.2 (9702 A Level)🎯 Practice
• Stellar radii: Wien and Stefan–BoltzmannCoursebook 31.3 (9702 A Level)🎯 Practice
• Hubble’s law and the Big BangCoursebook 31.4 (9702 A Level)🎯 Practice