Question

How did the term radio originate?

A.
from the electromagnetic rays that the device transmits
B.
from the material used to create the device
C.
from the radial manner in which the signals transmit
D.
from the name of the person who invented the device

Answer 1

Step-by-step explanation

euphonious name originates from a type of electromagnetic radiation discovered by the German physicist Heinrich Hertz. Originally, scientists used the prefix radio to indicate radiant or radiation—hence the designation of "radio-activity" for the alpha, beta, gamma and x-rays emitted by decaying atoms.