Question

which best describes the order of the technology used to transmit a sound through the radio?
o microphone → transmitter → microphone
o radio → transmitter → radio
o radio → transmitter → microphone
o microphone → transmitter → radio

Explanation:

A microphone is used to convert sound waves into electrical signals. These electrical signals are then sent to a transmitter which modulates and broadcasts them. A radio receiver then picks up these broadcasted signals and converts them back into sound. So the correct order is microphone (to convert sound to electrical signal) → transmitter (to broadcast) → radio (to receive and convert back to sound).

Answer:

microphone → transmitter → radio