Chapter 11, Problem 24R

To determine

To fill: The appropriate word in the given blank space.

Answer to Problem 24R

The correct word is cell phones.

Explanation of Solution

Introduction:

A repeating movement that transfers energy through space or matter is known as wave. A wave that consists of magnetic field and oscillating electric field that mutually induce each other, are termed as electromagnetic waves.

Transceiver is an electronic device which transmits radio signal and also, receives radio signal at the same time. Using $2$ signals with dissimilar frequencies allows a person to talk and also, listen at same time without any interference. Cell phone is an example of transceiver.

Conclusion:

The name of the device is cell phone.