Exam-style question
Try this first
Absorption spectrum: Identify what dark lines in a stellar spectrum show. This tests Use Wien's law to estimate surface temperature. in Temperature and black-body radiation.
- A.Absorption spectrum answer: They show wavelengths absorbed by elements in the star atmosphere.
- B.Absorption spectrum distractor: They show the telescope mirror diameter.
- C.Absorption spectrum misconception: They are caused by parallax shift.
- D.Absorption spectrum off-scope: They directly state galaxy age.
Model answer
What a good answer should say
- The correct option is Absorption spectrum answer: They show wavelengths absorbed by elements in the star atmosphere.
Explanation
Why this works
It is correct because it applies Temperature and black-body radiation evidence to Use Wien's law to estimate surface temperature.. 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.