What range of electromagnetic waves is used for transmission: a) speech and music; b) images?
| August 30, 2020 | Education
For radio communication, short waves (frequencies of the order of 100 kHz) are used, and for television transmissions, ultrashort waves (frequencies from 50 to 230 MHz).
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.