The ones we call "radio waves".
That's the electromagnetic spectrum between maybe roughly speaking 10 KHz to 300 GHz.,
or wavelengths between 1 mm to 30 km.
Electromagnetic waves carry radio, television, and telephone waves. These waves are a type of energy that do not require a medium to travel through and can propagate through space. They have different frequencies and wavelengths, which determine their specific uses in communication.
The ones we call "radio waves". That's the electromagnetic spectrum between maybe roughly speaking 10 KHz to 300 GHz., or wavelengths between 1 mm to 30 km.
Communications Satellites ************************ Electro-magnetic waves. Carrier waves.
Your landline carries the voice/data on copper wires. A mobile uses radio waves but they are a different frequency from that used to broadcast TV.
by changing the amplitude or frequency of the radio waves.
by changing the amplitude or frequency of the radio waves.
Radio waves
by changing the amplitude or frequency of the radio waves.
by changing the amplitude or frequency of the radio waves.
Both radio waves and tv waves are electromagnetic waves. So both have the same speed in vacuum. Of course radio waves are of lower frequency compared to that of tv waves.
Is it true that radio waves carry information from a broadcasting station to your radio or television
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.
No. Radio/television waves do not affect the temperature, but usage of radios and televisions definitely does.