Why do microwave ovens use 2.4 GHz like WiFi and Bluetooth?

Why Microwave Ovens use 2.4 GHzMicrowave ovens that you use to cook food operate at a frequency of  2.45 GHz.

This is the same radio band where one finds WiFi, Bluetooth, and so on.

So, why is everything lumped into this one chunk of the frequency spectrum? Is there something particularly magical about 2.4 GHz?

It turns out that there is a common misconception about this frequency and water.

The truth, however, is far more mundane…