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← ScienceIf microwave dark spots form inside microwave ovens due to standing waves, which adjustment increases heating evenness?
A)Turntable introduces time-varying wave interference✓
B)Increase waveguide aspect ratio prevents modes
C)Decrease magnetron frequency expands nodes
D)Switch to multimode fiber accelerates radiation
💡 Explanation
A turntable helps reduce dark spots because it introduces a time-varying path length, disrupting the standing wave pattern via wave interference. Therefore hot and cold spots diminish, increasing temperature uniformity rather than using static microwave distribution or fiber optics.
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