The use of microwave ovens has become quite common, and people primarily use them to heat food. Microwave ovens use microwave radiation to heat food. These rays have a frequency of 2.4 GHz and are generated by a magnetron connected to the oven.
If you try to observe something while heating it in the microwave, you may notice that the metallic mesh on the door makes it difficult to see inside.
But do you know why this mesh with a cage-like pattern exists on the microwave oven door? It may be hard to believe, but this mesh serves a very important purpose.
This mesh prevents microwave radiation from escaping through the glass. The microwave rays could potentially harm objects outside the oven, so the metallic mesh is attached to the oven door’s glass to prevent this.
The mesh has tiny holes that block the microwave rays because the size of the rays is larger than the holes. This mesh is called a Faraday cage.
Most microwave ovens have this feature to protect people, and that’s why it’s not possible to use them with the door open.
