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← ScienceWithin a microwave oven, which mechanism causes localized heating?
A)Dielectric polarization increases thermal motion✓
B)Resistive losses enhance field strength
C)Standing waves diminish wave interaction
D)Waveguides prevent sufficient energy transfer
💡 Explanation
Dielectric materials absorb microwave energy via dielectric polarization which arises because polar molecules rotate and collide, therefore kinetic energy increases and the sample heats up, rather than resistive losses or wave interference.
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