Which one of the following statements is wrong O Radio waves

Last updated: 6/20/2023

Which one of the following statements is wrong O Radio waves in the frequency range 10MHz to 20 MHz are called sky waves Radio horizon of the transmitting antenna for space wave is dT RhT R radius of earth h height of transmitting antenna O Fiber optical communication is almost free from electrical disturbances The principle of fibre optical communication is total internal reflection