Edward D. Jones & Co., L.P., since 1995 simplified as Edward Jones is a financial services firm headquartered in Des Peres, Missouri, United States and serves investment clients in the U.S. and Canada, through its branch network of more than 12,000 locations and currently have relationships with nearly 7 million clients and $914 billion asset under ...
The best-known use of radio waves is for communication; television, cellphones and radios all receive radio waves and convert them to mechanical vibrations in the speaker to create sound waves that can be heard. Electromagnetic radiation is transmitted in waves or particles at different wavelengths and frequencies. This broad range of wavelengths is known as the electromagnetic (EM) spectrum. The spectrum is generally divided into seven regions in order of decreasing wavelength and increasing energy and frequency. The common designations are radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma-rays. Radio waves have the longest wavelengths in the EM spectrum, according to NASA, ranging from about 1 millimeter (0.04 inches) to more than 100 kilometers (62 miles). They also have the lowest frequencies, from about 3,000 cycles per second or 3 kilohertz (kHz) up to about 300 billion hertz, or 300 gigahertz (GHz).
But by definition radio waves are not sound waves. Radio waves can travel in a vacuum, but sound waves need a physical medium. To explain â¦ the apparent contradiction, the sound wave is converted to an electrical signal version that is then used to modulate the radio signal. 3 people found this useful. Asif Shaik.