GROWTH DEVELOPMENT CHILD
ASSESSMENT TECHNIQUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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true
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false
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Either A or B
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None of the above
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Detailed explanation-1: -The microwave energy is changed to heat as it is absorbed by food, and does not make food “radioactive” or “contaminated.” Although heat is produced directly in the food, microwave ovens do not cook food from the “inside out."
Detailed explanation-2: -Microwave ovens use electromagnetic radiation to heat food. The non-ionizing radiation used by a microwave does not make the food radioactive. Microwaves are only produced when the oven is operating.
Detailed explanation-3: -A microwave oven does emit thermal radiation to heat up food. Microwave radiation is thermal radiation. For some reason, pre-college teachers and books have a mistaken notion that thermal radiation = infrared radiation.
Detailed explanation-4: -"A microwave oven cooks food because the water molecules inside it absorb the microwave radiation and thereby heat up and heat the surrounding food. Microwave radiation will similarly heat up skin and other body parts.