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What is the unit of radiation power density?

4. What is the unit of radiation power density?

  1. Watt per meter square
  2. Decibels
  3. Pascals
  4. Watt

Answer: A) Watt per meter square

Explanation:

Watts per square meter (W/m2) are often used to measure radiation power density. The Watt is a power unit that is commonly used to measure the rate of energy transmission. One watt is equivalent to one joule per second in general, and when we represent power per unit area, as we do in radiation power density, we use watts per square meter (W/m2).

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