A microwave oven is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range Stock Photo - Alamy
Is Microwave Oven Safe? - Moniem-Tech
Why does a microwave oven use microwaves to heat food and not visible light? Why are microwaves so effective to heat food? - Quora
Microwave ovens | How do they work? - Explain that Stuff