Multiple choice

The radiation emitted by a perfect black body is proportional to

  1. temperature on ideal gas scales

  2. 4th root of temp. on ideal gas scale

  3. 4th power of temp. on ideal gas scale

  4. source of temp. on ideal gas scale

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C Correct answer
Explanation

The Stefan-Boltzmann law states that the power radiated per unit area of a black body is directly proportional to the fourth power of its absolute temperature (T^4). This relationship is fundamental to understanding thermal radiation.

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