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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2013
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Q)

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


( A ) Microwaves are heat waves, so always produce heating
( B ) Infra-red waves produce heating in a microwave oven
( C ) The frequency of the microwaves has no relation with natural frequency of water molecules
( D ) The frequency of the microwaves must match the resonant frequency of water molecules

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