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The law about total power radiated across all wavelengths is:

ASnell's law
BSteno's law
CStefan's law
DStokes' law
Answer & Solution
Correct answer: C. Stefan's law
1. It adds up the whole spectrum. 2. It links power with temperature. 3. That is Stefan's law. _Source: OpenStax University Physics Volume 3, Chapter 6, Photons and Matter Waves._
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