Principle construction and working of microwave oven?

A microwave oven operates by using microwave radiation, typically at a frequency of 2.45 GHz, to heat food. The appliance contains a magnetron, which generates microwaves that are directed into the cooking chamber. These microwaves cause water molecules in the food to vibrate, producing heat through friction, which cooks the food evenly. The design includes a turntable or rotating antenna to ensure uniform heating throughout the food.