What is the range of electromagnetic microwaves?
between 300 MHz to 300 GHz
Microwaves are defined as electromagnetic radiations with a frequency ranging between 300 MHz to 300 GHz while the wavelength ranges from 1 mm to around 30 cm. The microwave radiation is commonly referred to as microwaves. They fall between the infrared radiation and radio waves in the electromagnetic spectrum.
How does a microwave work class 12 physics?
Working of microwave oven:- When we heat any food material inside the microwave, the microwaves penetrate inside the food. So the microwaves get absorbed by the water and the fat molecules. The molecules of the food material will start moving randomlywith some frequency.
How do you find the frequency of a microwave with a wavelength?
Explanation: Microwaves are electromagnetic in nature and hence travel at the speed of light in air or vacuum, c=3×108m/s . ∴λ=cf=3×108m/s2×109Hz=0.15m .
How do I find the frequency of my microwave?
By dividing the speed of light c by the wavelength value that we found (lambda = 2.9 cm) we were able to determine the frequency, which is f = 10.3 Ghz. This frequency is about four times higher than that used in a standard home microwave oven.
Where are microwave can be found on electromagnetic spectrum?
Microwaves are a portion or “band” found at the higher frequency end of the radio spectrum, but they are commonly distinguished from radio waves because of the technologies used to access them.
How does microwave work in physics?
The principle behind the microwave is very simple – it’s all about the atom. When you add energy to an atom or molecule, it vibrates. More energy equals more vibrations, and this generates heat. In a microwave oven, this is achieved by generating and passing short radio waves, known as microwaves, within the unit.
What is microwave frequency spectrum?
The microwave spectrum is usually defined as a range of frequencies ranging from 1 GHz to over 100 GHz. This range has been divided into a number of frequency bands, each represented by a letter. The most common being the IEEE Radar Bands followed by NATO Radio Bands and ITU Bands.
How did you find the wavelength of radio wave microwave?
To conclude, to determine the wavelength of a radio wave, you take the speed and divide it by the frequency. Typical radio wave frequencies are about 88~108 MHz . The wavelength is thus typically about 3.41×109 ~ 2.78×109 nm .