Microwave heating principle and the water molecules present in the food produces heat because

Microwave heating principle is based on the interaction between electromagnetic waves and water molecules present in the food. When food is placed in a microwave oven and the oven is turned on, electromagnetic waves are generated and emitted into the oven. These waves have a specific frequency that causes the water molecules in the food to vibrate rapidly.

As the electromagnetic waves pass through the food, they penetrate the outer layers and reach the water molecules inside. The waves have an oscillating electric field that causes the water molecules to align with the field and rapidly change their orientation. This continuous reorientation of the water molecules generates friction and heat.

The rapid movement and collision of the water molecules due to the electromagnetic waves' energy result in the conversion of this energy into heat. This heat is then transferred to the surrounding food, gradually increasing its temperature.

In summary, the microwave heating principle relies on the interaction between electromagnetic waves and water molecules in the food. The waves cause the water molecules to vibrate and generate heat through friction, leading to the overall heating of the food.