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By What Factor Does the Total Energy Emitted Per Unit

Question 220

Multiple Choice

By what factor does the total energy emitted per unit time at all wavelengths from an opaque, perfectly absorbing object increase if its temperature increases by a factor of 3 (e.g., approximately from room temperature to 900 K) ?


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

Correct Answer:

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