What are long radio waves used for?
Communications around the curvature of the Earth. Attempted communications with submerged submarines. Attempted transmission of electrical power (Nikola Tesla).
The Radio Waves are basically the Electromagnetic(EM) Waves. The suitable data or we can say the equations which are useful in generation of EM Waves was given by the Godfather of communication Sir James Clerk Maxwell. And that four Equations are used as practically by Sir Heinrich Hertz. The Radio Waves are used for the Telecommunication which means the long distance communication.
Radio waves are used to transmit signals from a radio station, and you can receive the signals with a radio, and hear them as sound such as speech or music. The long wavelength of radio waves makes them a suitable medium for transmitting over a large range. it is also use in agriculture...... it is used to diagnose different diseases
Radio waves have a far longer wavelength than visible light. The radio waves that do the cooking in your microwave oven are as long as roughly 310,000 waves of blue light placed end-to-end. The radio waves transmitted by an AM station at 1400kHz on your AM dial are roughly 550 billion times as long as blue-light waves.
Radio waves can carry sound signals. 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 the apparent contradiction, the sound wave is converted to an electrical signal version that is then used to modulate the radio signal. No it is not
AM Radio Waves especially Long Wave Radio. As an example Radio 4 in the UK still transmits at 1500 m long wave which equates to approximately 300,000/1500 = 200 Hz A2. The AM refers to the modulation system, not the carrier wave. VLF and ELF are commonly used to indicate radio wave bands down below 20 kHz. Waves as low as 10kHz are used to communicate with submarines, without their having to surface.
Radio waves are very useful to our society. They help us to send and receive information such as pictures, music and text. However, radio waves can have a detrimental effect on our health. Exposure to radio waves can cause cancer after long periods of time. ================================ There is a lot of rumor, suspicion, and urban myth, but no evidence, that exposure to radio waves can cause cancer after long periods of time.
Basically, some kind of electromagnetic radiation is used: radio waves, light, etc. Basically, some kind of electromagnetic radiation is used: radio waves, light, etc. Basically, some kind of electromagnetic radiation is used: radio waves, light, etc. Basically, some kind of electromagnetic radiation is used: radio waves, light, etc.
Sound waves would not ordinarily be converted INTO radio waves. Sound Waves can be used to modulate the radio waves. The radio frequency of a typical FM station is around 100MHz. The audio is used to vary the FM frequency by the range of audio waves, perhaps 100 Hz up to 12 kHz. So the 100MHz signal varies from 100 MHz ± (100 to 12kHz)
What Waves that have the longest wavelengths and are used to carry audio and picture signals over long distances are known as?
No. Radar waves are one category of radio waves. Think of all the radio waves that are all around you right now . . . AM radio, FM radio, police and fire radio, highway patrol radio, taxi radio, television picture and sound radio waves, cellphone radio waves, garage-door-opener radio waves, bluetooth radio waves, WiFi waves, microwaves ... and you can't see any of them ! Radar waves can easily be there in the group.
Radar comes from Radio Detection and Range. By definition, it uses radio waves. Ultra sonic waves, very high frequency audio waves, are used in Sonar, the name being analogous to Radar. Infra Sonic waves are of far too long a wavelength to be useful for any measurement of the distance of the target. [And there are some technical reasons as well - not dealt with here.]