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staedtler staedtler
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7 years ago
In the spectrum of a particular star, helium absorption lines are stronger than hydrogen absorption lines, and there are very few spectral lines present from any other elements. What is the spectral class of this star?

(a)   O.
(b)   A.
(c)   M.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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hyponoticahyponotica
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7 years ago
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staedtler Author
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7 years ago
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