Question

the waves with the longest wavelengths in the electromagnetic spectrum are what?

Answer 1

Radio waves have the longest wavelengths in the whole electromagnetic spectrum
Radio waves are produced by the accelerated motion of charges in conducting
wires. They are used in radio and television communication systems. They
are generally in the frequency range from 500 kHz to about 1000 MHz.
The AM (amplitude modulated) band is from 530 kHz to 1710 kHz. Higher
frequencies upto 54 MHz are used for short wave bands. TV waves range
from 54 MHz to 890 MHz. The FM (frequency modulated) radio band
extends from 88 MHz to 108 MHz. Cellular phones use radio waves to
transmit voice communication in the ultrahigh frequency (UHF) band.