They are not within our visible sensors spectrum
Radio Waves.
by changing the amplitude or frequency of the radio waves.
Radio waves are electromagnetic waves occurring on the radio frequency portion of the electromagnetic spectrum.
The frequency range that the radio waves can penetrate the human body is between 1Hz and 10 KHz. This frequency of the radio waves is however not dangerous.
by changing the amplitude or frequency of the radio waves.
by changing the amplitude or frequency of the radio waves.
The small spark created by the contact of the switch created radio frequency waves that happen to included the frequency of your radio.
Gamma rays have the highest frequency among gamma rays, infrared waves, and radio waves.
Extremely low frequency (ELF) radio waves. They can have wavelengths of over 60,000 miles (100,000 km) and frequencies from 3 to 300 Hz.
FM radio has the higher frequency which is why it sounds better. AM is a lower frequency but can travel further because the waves bounce off
Radio waves have the lowest frequency among the electromagnetic waves. They have frequencies ranging from 3 kHz to 300 GHz.
frequency