AP and TS EAMCET Medical 2020 Model Paper 2

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Question : 113 of 159

Marks: +1, -0

The condition under which a micro wave oven heats up a food item containing water molecules most efficiently is

infrared waves produce heating in a microwave oven
microwaves are heat waves, so always produce heating
The frequency of microwaves has no relation with natural frequency of water molecules
The frequency of the microwaves must match the resonant frequency of the water molecules

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