Radio: Frequency (Hz): 3 Hz - 300 GHz, Energy Level: Low energy
Practical Use-List 2: Transmits calls and messages through cell phones, broadcasts radio stations for entertainment.
Microwaves: Frequency (Hz): 300 MHz - 300 GHz, Energy Level: Low energy
Practical Use-List 2: Heats up food quickly and efficiently through microwave ovens, used in radar technology for communication and navigation systems.