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What is the Stefan-Boltzmann law related to?

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Question: What is the Stefan-Boltzmann law related to?

Options:

  1. Conduction
  2. Convection
  3. Radiation
  4. Thermal expansion

Correct Answer: Radiation

Solution: 

The Stefan-Boltzmann law states that the total energy radiated per unit surface area of a black body is proportional to the fourth power of its absolute temperature.

What is the Stefan-Boltzmann law related to?

Practice Questions

Q1
What is the Stefan-Boltzmann law related to?
  1. Conduction
  2. Convection
  3. Radiation
  4. Thermal expansion

Questions & Step-by-Step Solutions

What is the Stefan-Boltzmann law related to?
  • Step 1: Understand what a black body is. A black body is an idealized object that absorbs all radiation that hits it and emits radiation perfectly.
  • Step 2: Learn about temperature. Temperature is a measure of how hot or cold something is, and in this law, we use absolute temperature, which is measured in Kelvin.
  • Step 3: Know what energy radiation means. Energy radiation is the energy emitted by an object in the form of electromagnetic waves, like light or heat.
  • Step 4: Recognize the relationship in the law. The Stefan-Boltzmann law tells us that if you increase the temperature of a black body, it will emit much more energy.
  • Step 5: Understand the 'fourth power' part. This means that if you double the temperature, the energy emitted increases by 2^4 (which is 16 times more).
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