Questions
The condition under which a microwave oven heats up a food item containing water molecules most efficiently is
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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 must match the resonant frequency of the water molecules
d
The frequency of the microwaves has no relation with natural frequency of water molecules
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Correct option is C
In microwave oven the frequency of the microwaves must match the resonant frequency of water molecules so that energy from the waves is transferred efficiently to the kinetic energy of the molecules.Talk to our academic expert!
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