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What is the main characteristic of a black body in terms of radiation? (2019)

Practice Questions

Q1
What is the main characteristic of a black body in terms of radiation? (2019)
  1. Reflects all radiation
  2. Absorbs all radiation
  3. Transmits all radiation
  4. Scatters all radiation

Questions & Step-by-Step Solutions

What is the main characteristic of a black body in terms of radiation? (2019)
  • Step 1: Understand what a black body is. A black body is an idealized object that perfectly absorbs all types of radiation that hits it.
  • Step 2: Know that because it absorbs all radiation, it does not reflect or transmit any light or heat.
  • Step 3: Realize that a black body is also an ideal emitter of thermal radiation. This means it can emit radiation very efficiently when it is heated.
  • Step 4: Remember that the main characteristic of a black body is its ability to absorb all incident radiation and emit thermal radiation perfectly.
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