Exam-style question
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Supernova standard candle: Choose how a Type Ia supernova supports distance measurement. This tests Estimate the age of the Universe from Hubble constant values. in Hubble's law.
- A.Supernova standard candle answer: Its known peak luminosity can be compared with observed brightness.
- B.Supernova standard candle distractor: It changes a telescope focal ratio.
- C.Supernova standard candle misconception: It measures diffraction rings only.
- D.Supernova standard candle off-scope: It is a laboratory absorption lamp.
Model answer
What a good answer should say
- The correct option is Supernova standard candle answer: Its known peak luminosity can be compared with observed brightness.
Explanation
Why this works
It is correct because it applies Hubble's law evidence to Estimate the age of the Universe from Hubble constant values.. The other options are incorrect because they swap in a different astrophysics measurement, telescope property or cosmology idea.
Common mistake
No common mistake is linked to this question yet.