Cell phone signals passing through walls is an example of
A) absorption.
B) reflection or scattering.
C) emission.
D) transmission.

Question

Quizplus · Accepted Answer

Cell phone signals passing through walls is an example of transmission, which is the ability of signals to pass through materials with minimal attenuation. This is because radio waves, the type of electromagnetic waves used for cell phone signals, have longer wavelengths that allow them to diffract around obstacles like walls. Absorption, reflection or scattering, and emission are all possible behaviors of electromagnetic waves, but transmission is the most relevant in this scenario.

Cell Phone Signals Passing Through Walls Is an Example of