Exam-style question
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What is the relationship between luminosity and apparent brightness?.
- A.They are the same concept
- B.Luminosity is always greater than apparent brightness
- C.Apparent brightness depends on luminosity and distance
- D.Luminosity decreases as apparent brightness increases
Model answer
What a good answer should say
- Apparent brightness depends on luminosity and distance
Explanation
Why this works
Apparent brightness is influenced by both the luminosity of the star and its distance from the observer. A more luminous star will appear brighter, but if it is far away, its apparent brightness will be reduced.
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