True or false: IR sensors can detect people through walls.Group of answer choicesTrueFalse

Answer

True or False: IR sensors can detect people through walls.

The statement is False.

Explanation

Infrared (IR) sensors operate by detecting infrared radiation, which is emitted by warm objects, such as humans and animals. These sensors typically function on the principle of detecting heat signatures. However, walls and other solid materials can obstruct the infrared radiation transmitted by a person, thereby limiting the ability of the IR sensor to detect individuals who are on the other side of the wall.

IR radiation does not typically penetrate opaque materials like walls, as the density and structure of such materials absorb or reflect the radiation. Therefore, while IR sensors can effectively detect people within line of sight or in open spaces, they cannot reliably detect individuals if they are separated by walls. Thus, the capability of IR sensors is contingent upon the absence of barriers between the sensor and the heat source.