Detecting whether or not a mirror is single- or double-sided is a helpful talent for numerous causes. Double-sided mirrors, often known as two-way mirrors, have distinctive properties that distinguish them from common mirrors.
One of many defining traits of a double-sided mirror is its capacity to permit mild to move by means of one facet whereas reflecting it on the opposite. This property makes double-sided mirrors helpful in purposes the place commentary is critical with out being detected, comparable to in interrogation rooms, surveillance, and safety settings.