Want this question answered?
radar
Radar locates objects with radio waves.
Radar
Radio waves are the lowest frequency waves. Next are microwaves, then infra-red waves.
Radio waves
radar
Radar locates objects with radio waves.
Radar
radar
radar -note this word is a palindrome (palindromes are words that are spelt the same whether you write/read it forwards or backwards)
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.
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