Wifi is like your voice. The same thing happens to your voice. When you speak or yell your voice will be nice and loud nearby but becomes weaker the farther it travels.
Wifi is an energy field that is turned into waves. Wifi waves travel through space as rapidly. Wifi routers are basically antennas that can send data over multiple frequencies at the same time.
Like mobile phones us a wifi network uses radio waves to transmit information across a network. Wifi stands for Wireless Fidelity.
Wifi works by using radio waves and to provide network. Wifi provides wireless internet to your devices by emitting frequencies between 2.4GHz and 5GHz.