Which process of heat transfer- conduction, convection or radiation- is used in a microwave oven to heat the food??
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Microwave radiation utilizes short, high-frequency waves that penetrate food, which agitates its water molecules to create friction and transfer heat. If you're heating a solid substance, this heat energy is transferred throughout the food through conduction, while liquids do so through convection.
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the radiaton is the process of heat transfer and the sun is also a radiating manipulator. The heat from microwave oven comes from the solar energy so the heat process is radiation
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