25.1-25.3 · Astronomy and cosmologyLesson 3 of 13
A known luminosity becomes a distance
Measure the flux, look up the luminosity, and the distance falls out of one equation.
Locked
Unlock the rest of A2 Physics: Medical Physics, Astronomy and Cosmology (9702).
- Every lesson, every resource, unlocked instantly.
- Track progress and pick up where you left off.
- Free preview lessons stay readable from the outline.