• Matéria: Inglês
  • Autor: sophiee2
  • Perguntado 3 anos atrás

" How did the radio originate?"


"Many scientists dreamed of discovering a way to wireless communication, but didn't succeed until the late nineteenth century."



"[Heinrich Hertz] demonstrated that waves [...] could be reflected by a metal sheet".



" All that was left was the Russian, Popov ( Alexandre Popoff), to create vertical metal pole [...]"



" This led to the creation of the first radio transmitter..."



4- Which of theses statements about the radio are true? Answer in your notebook.


A- The invention of the radio was possible at beginning of the 19th century.


B- James Clerk Maxwell invented the first radio.


C- In 1888, Heinrich Hertz tested Maxwell's assumption.


D- Hertz experiment was replicated by Marconi without much sucess.


E- Temistocle named the coherer in 1888.



F- Scientists found that radio communication involves the transmission of electromagnetic waves.​

Respostas

respondido por: niiyo
0

Resposta:

FF

Explicação:

F- Scientists found that radio communication involves the transmission of electromagnetic waves.​

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