5 Uses Of Microwave Radiation

It indicates that microwaves are small because have shorter wavelengths as compared to waves used in typical radio broadcasting.

5 uses of microwave radiation. Electromagnetic radiation electromagnetic radiation microwaves. The microwaves heat the surface of human skin to an uncomfortable temperature causing the target to move away. With frequencies between 300 mhz 1 m and 300 ghz 1 mm. When food absorbs microwaves it causes the water molecules in the food to vibrate which produces heat.

Microwaves do not use x rays or gamma rays and they do not make food radioactive. The microwaves excite the water which in turn heats the rest of the food. The above broad definition includes both uhf and ehf millimeter wave bands a more common definition in radio frequency engineering is the range between 1. They are used variously between different fields of study see figure.

The boundaries between far infrared light terahertz radiation microwaves and ultra high frequency radio waves are fairly arbitrary. Different sources define different frequency ranges as microwaves. Although microwaves were first produced and studied in 1886 by hertz their practical application had to await the invention of suitable generators such as the klystron and magnetron. They are used by mobile phones produced from a transmitter chip and antenna as well as wifi.

Microwaves are also used in this manner to heat fuel in nuclear reactors. They are also used in radar which is used by ships aircraft and weather forecasters. When a different choice of microwave frequency is made a different strength of the external magnetic field is required to achieve the resonance condition. Microwaves are a form of electromagnetic radiation with wavelengths between 10 3 and 10 1.

Have you ever been worried about using your microwave oven because you ve heard that it may harm you in some way. They can cause water and fat molecules to vibrate so they are used for cooking in microwave ovens. The microwave region extends from 1 000 to 300 000 mhz or 30 cm to 1 mm wavelength. Or that it may destroy the micro some say that microwave radiation can damage one s genetics dna and subsequently cause cancer.

The microwave radiation used in esr is most commonly of frequency 9 10 ghz i e 9 10 10 9 s 1 the so named x band but other frequency ranges are sometimes used. A federal standard 21 cfr 1030 10 limits the amount of microwaves that can leak from an oven throughout its lifetime to 5 milliwatts mw of microwave radiation per square centimeter at.