> if you put food in a small microwave then put the small microwave in a bigger microwave does the food cook faster? No. The microwaves stay in the smaller mic

> if you put food in a small microwave then put the small microwave in a bigger microwave does the food cook faster? No. The microwaves stay in the smaller microwave oven because it is a microwave-tight box. If you put that small microwave oven in a bigger microwave oven the bigger one will likely fry many of the component of the smaller one but the food inside the inner microwave oven is unlikely to be affected because the outer microwaves are unable to penetrate the inner microwave-tight box.