I am planning to do an investigation on factors affecting the amount of microwave absorption. I understand how microwave radiation heats objects, but do factors such as color affect the amount of microwave absorption?

Moreover, if I were to use the same substance (ex.water), what factors would affect how fast the substance heats up?

  • $\begingroup$ How is the microwave radiation being emitted? Are you using a direct microwave beam or are you using a microwave cavity? $\endgroup$ – Feel My Black Hole Aug 23 '19 at 13:40
  • $\begingroup$ What's the purpose of your "investigation"? $\endgroup$ – Bob D Aug 23 '19 at 13:49
  • $\begingroup$ Due to high complexity this matter is mostly experimental. The best absorbers seem to be graphite, iron oxide ($Fe_2O_3$ if I recall) and their equal mix. $\endgroup$ – safesphere Aug 23 '19 at 19:14

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