Exam-style question
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Which spectral class corresponds to the hottest stars on the Hertzsprung–Russell diagram?.
Model answer
What a good answer should say
- The hottest stars are of spectral class O, followed by B, A, F, G, K and M in decreasing temperature order.
Explanation
Why this works
The answer demonstrates knowledge of the spectral classification sequence and correctly identifies the hottest class, testing recall and application of the temperature ordering.
Common mistake
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