Exam-style question
Try this first
Which statement accurately describes how absorption spectra are used in astrophysics?.
- A.They are used to measure the star's gravitational pull
- B.They help identify the chemical composition of stars
- C.They determine the star's age
- D.They are irrelevant to stellar studies
Model answer
What a good answer should say
- They help identify the chemical composition of stars
Explanation
Why this works
Absorption spectra are fundamental in astrophysics for identifying the chemical composition of stars. By analyzing the absorption lines, scientists can determine which elements are present and their relative abundances.
Common mistake
No common mistake is linked to this question yet.