To heat the food containing water, the frequency of the microwaves used in microwave oven is
A
independent of the resonant frequency of water molecules.
B
equal to the resonant frequency of water molecules.
C
100 times the resonant frequency of water molecules.
D
times the resonant frequency of water molecules.
Text Solution
Verified by ExpertsThe correct answer is:
B
In a microwave oven, the frequency of the microwave must match the resonant frequency of water molecular. In this way the maximum heat can be transferred to food in most efficient way.
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