The Higher the Luminosity (Intrinsic Brightness) a Cepheid Variable Is

question 1

Multiple Choice

The higher the luminosity (intrinsic brightness) a Cepheid variable is,

• A) the smaller its mass
• B) the lower it is on the main sequence of the H-R diagram
• C) the longer the period of its variations
• D) the closer it is to us
• E) the larger the telescope we need to observe it

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