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    Investigating Astronomy
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    Exam 2: Decoding the Hidden Messages in Starlight
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    The Total Energy Emitted Per Unit Time at All Wavelengths
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The Total Energy Emitted Per Unit Time at All Wavelengths

Question 67

Question 67

Multiple Choice

The total energy emitted per unit time at all wavelengths from an object increases by what factor if its temperature is increased by a factor of 3 (e.g. ,from room temperature to 900 K) ?


A) 27
B) 81
C) 3
D) 9

Correct Answer:

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