Question

What do AM radio, FM radio, television, and cell phones have in common?


They were all invented in the same year.


They were all invented by the same scientist.


They all use specific frequencies of radio waves to which electronic signals are encoded.

Answer 1

They all use specific frequencies of radio waves to which electronic signals are encoded.

Answer 2

They all use specific frequencies of radio waves to which electronic signals are encoded. Option D is correct.

What is the frequency?

Frequency is defined as the number of repetitions of a wave occurring waves in 1 second.

FM radio, television, and cell phones all use specific frequencies of radio waves to which electronic signals are encoded. The frequency is common in all given electronic instruments.

Hence Option D is correct.

To learn more about the frequency reference to the link;

https://brainly.com/question/14926605