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Which statement is true about radio waves?
A.Radio waves can transmit only sounds.
B.Radio waves can transmit only images.
C.Radio waves do not need to travel through a medium.
D. Radio waves must have a medium to travel through

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jjbensinger

Answer:   D

Explanation:

Radio eaves are electromagnetic radiation that has wavelengths in the electromagnetic spectrum that are longer than (IR) infrared radiation. They have a frequency as high as 300 to 30 GHz.  

  • Radio waves are more sued in communication. They can pass by the air in any weather. They don't need any medium as they are not mechanical. Hence the option C is correct.

Learn more about the statement that is true about radio waves.

brainly.in/question/35628441.