Why is it that when you put foil in the oven nothing happens but put it in the microwave it might explode?

Question

Why is it that when you put foil in the oven nothing happens but put it in the microwave it might explode?

Answer 1

foil absorbs heat energy from a regular oven, but it reflects radio-frequency energy from a microwave generator -- right back into the generator, causing the generator to overload and possibly explode (or, more likely, just burn out).

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