The heating of the food in the microwave oven is because of EM waves reflection and the reflection is because of characteristics of

The heating of food in a microwave oven is due to the absorption of electromagnetic waves, specifically microwaves, by water molecules in the food. This process is known as dielectric heating. Here's a step-by-step explanation:

1. When you start the microwave, it generates microwaves.
2. These microwaves penetrate the food.
3. Water molecules in the food absorb these microwaves.
4. The absorption of microwaves causes the water molecules to vibrate.
5. This vibration generates heat, which cooks the food.

The reflection of microwaves inside the oven helps to ensure that the food is cooked evenly. The characteristics of the oven's interior, which is typically made of metal, cause the microwaves to reflect off the walls and into the food from different angles.