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MCQIntermediateLight, Radiation & Spectroscopy

BAAO — 2018 Astronomy & Astrophysics Challenge

Question 9

Light from a star is split into a line spectrum of different colours. The line spectrum from the star is shown, along with the line spectra of some individual elements. Identify the elements present in the star.

Figure for BAAO 2018 question 9

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Source

Source: British Astronomy and Astrophysics Olympiad (BAAO), Astronomy & Astrophysics Challenge 2018. Question text, answer-choice text, and answer were transcribed from the official BAAO paper and solutions PDFs; the explanation and metadata are original.