An Astronomer Observes Two Ordinary Stars

question 29

Multiple Choice

An astronomer observes two ordinary stars. The first one turns out to be twice as hot as the second. This means that the first one radiates:

• A) twice as much energy as the second
• B) roughly the same amount of energy as the second
• C) half as much energy as the second
• D) about 16 times the energy of the second
• E) this problem cannot be solved with just the information we were given

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