One convenient working definition of 'radio' is: Electromagnetic radiation
with frequency up to 300 GHz / wavelength down to 1 millimeter.
'Radio' is our name for the lowest frequency / longest wavelength, so
there's no lower limit on frequency, or upper limit on wavelength.
-- AM commercial radio broadcast band . . .
550 KHz to 1.7 MHz
176.5 to 545.5 meters
-- FM commercial radio broadcast band . . .
88 to 108 MHz
2.78 to 3.41 meters
-- Radio-wave energy used to heat leftover meat loaf
in a microwave oven:
2.45 GHz
12.2 centimeters
no, mechanical waves are not radio waves
Radio waves ARE electromagnetic waves.
Transverse. Radio waves are electromagnetic waves, which are transverse.
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.
Radio waves are electromagnetic waves occurring on the radio frequency portion of the electromagnetic spectrum.
by changing the amplitude or frequency of the radio waves.
Radio Waves - radio station - was created in 2010.
by changing the amplitude or frequency of the radio waves.
Radio and light waves are electromagnetic waves, sound waves are not.
Radio waves are electromagnetic waves that carry energy. When these waves are absorbed by the radio's antenna, they induce electrical currents in the circuitry of the radio. This process allows the radio to convert the energy from the radio waves into sound, enabling us to hear broadcasts. However, radio waves themselves do not heat; it is the conversion of that energy into electrical signals that allows the radio to function.
Radio waves are electromagnetic waves. The radio waves have the longest wavelengths in the electromagnetic spectrum. A radio wave has a much longer wavelength than does visible light. We use radio waves extensively for communications.
No, electromagnetic waves that are felt as heat are called infrared waves, not radio waves. Radio waves have lower frequencies and longer wavelengths than infrared waves.