Question

unit 7 \physical interaction\ test
the shortest radio waves are called ______.
○ ultraviolet waves
○ infrared waves
○ microwaves.
○ gamma rays

Explanation:

Radio - waves are part of the electromagnetic spectrum. Microwaves are the shortest among radio - waves. Ultraviolet waves, infrared waves, and gamma rays are not radio - waves. Ultraviolet waves have shorter wavelengths than visible light but are not radio - waves. Infrared waves are also not radio - waves and have longer wavelengths than visible light. Gamma rays have the shortest wavelengths in the electromagnetic spectrum and are highly energetic, not radio - waves.

Answer:

C. microwaves