A microwave oven heats up a food item containing water molecules efficiently because frequency of waves produced in oven just matches with the frequency of vibrations of water molecules.
Class 12 Physics Chapter 8 Electromagnetic Waves Session 2024-2025.
How does microwave oven heats up food item containing water molecules most efficiently?
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A microwave oven heats food by emitting microwaves that resonate with water molecules. These microwaves cause the water molecules to vibrate rapidly due to dipole rotation, generating heat through friction. This efficient energy absorption raises the temperature, heating the food evenly and quickly.
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