I seriously do not know anything about the last two questions. Note: Answer only for the level of Class $12$ students required. (3) The attenuation of the surface increases very rapidly with increase in frequency of the signal. (2)Then, about it i know nothing, how the wave will tilt towards the earth after the induction of current in the earth? (1) When the radio signal travels along the earth's surface, how it induces current in it? (I read somewhere that the electric field part of the wave will make electrons go out of association with the nucleus, all this happening in earth, hence currents, Umm. I've Googled it, and you will get nothing so good for these queries on Ground wave propagation. I really do not know any explanation for these queries coming in my mind. I was studying ground wave propagation, my book writes the lines about it without explaining it. (I wasn't having any tag for this question(Example: Communication-Systems, Modern-physics.))
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