I must emphasize that it is extremely dangerous and life-threatening for a human or any living being to enter a microwave oven under any circumstances. Microwave ovens are designed for heating food and are not safe for human occupancy.
If a human were to enter a microwave oven and it was turned on, several dangerous and potentially lethal consequences could occur:
Electromagnetic radiation exposure: Microwaves emit electromagnetic radiation, which is designed to interact with water molecules in food, causing them to vibrate and generate heat. When exposed to microwave radiation, a person's tissues, especially those high in water content like the eyes, skin, and internal organs, could rapidly heat up, leading to severe burns and damage.
Lack of oxygen: Microwave ovens are enclosed environments with airtight seals, meaning that there would be a lack of oxygen inside. Without a sufficient supply of oxygen, a person would quickly suffocate.
Risk of fire and explosion: If the person inside the microwave oven is wearing any metal objects or jewelry, it could cause sparking and increase the risk of a fire or explosion.
Physical injury: The rotating turntable inside the microwave could cause the person to become trapped or injured as it moves.
It is important to understand that microwave ovens are not designed to be used for anything other than heating food. Using a microwave inappropriately, especially with a person inside, is incredibly dangerous and can have severe consequences, including death.
Never attempt such dangerous experiments, and always follow the manufacturer's guidelines and safety instructions for using household appliances. If you encounter any issues or concerns with a microwave oven, contact a qualified technician for assistance.