Electromagnetic radiation in the frequency range from 300 MHz to 300 Ghz is referred as microwave radiation or RF radiation. Out of these microwave frequencies particularly at 896,950,2450,3300,5800 and 10525 MHz have been found applications in industrial,scientific and medical domain.
Read moreHow do microwave ovens work physics?
The magnetron generates microwave radiation by bouncing electrons around inside a vacuum filled cavity that is exposed to a strong magnetic field . This magnetic field forces these electrons to circle around inside the cavity, absorbing energy. Eventually, this energy is released as a microwave.
Read moreWhat is the microwave oven method?
Microwave method consists of an electromagnetic radiation and lies between radio waves and infrared frequencies, and relative wavelength spans from 1 mm to 1 m. Dipole rotation and ionic conduction are the two fundamental mechanisms for transferring energy from microwave methods to the substance being heated.
Read moreWhy was the microwave originally invented?
The microwaves from the radar set he was working on were cooking the candy bar in his pocket! With a little experimentation, Spencer figured out that the microwaves could be concentrated to heat food . He created the first working microwave oven, and the first food he cooked in it was popcorn.
Read moreWhen was the microwave oven invented?
The first commercial microwave oven was tested in a Boston restaurant in 1947 . Later that year, Raytheon introduced the Radarange 1161. It stood 5.5 feet (1.7 meters) tall, weighed 750 lbs.5 Oca 2017
Read moreWhy microwaves are the best invention?
Summary. In summary, the microwave oven is a brilliant invention, which makes our lives so much easier . Microwaves can reheat food in a small amount of time, keeps the essential nutrients, and doesn’t make your food soggy.17 Tem 2020
Read moreWhy do Microwaves use 2 45 GHz?
The radiation used in microwave ovens is not resonant for water molecules and industrial microwave ovens use 915 MHz (probably, because larger cavities can produce more power). The frequency of 2.45 GHz is chosen because it falls in one of the bands not reserved for communication purposes .
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