Question

who invented radio and when ​

Answer 1

Answer:

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Explanation:

Guglielmo Marconi: an Italian inventor, proved the feasibility of radio communication. He sent and received his first radio signal in Italy in 1895.

Answer 2

Answer:

Marconi , in 1869

Explanation:

Guglielmo Giovanni Maria Marconi sent and received the first radio signal in Italy.

Later on, he received the Nobel Prize for Physics, in 1990.

Marconi became the inventor of a successful wireless telegraph.

I suppose signals are transmitted in the form of radio waves and are received with the help of resonance, matching of frequencies of two waves.

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Hope this helps!