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← ScienceWhich outcome occurs when a microwave's waveguide internal dimension resonates?
A)Maximum power is transferred to load✓
B)Phase velocity matches group velocity
C)Antenna impedance approaches 50 ohms
D)Cavity magnetron no longer oscillates
💡 Explanation
Maximum power transfer occurs because constructive interference amplifies the electromagnetic waves via standing waves, a resonance mechanism. Therefore, power absorbed is maximized, rather than mismatched impedance or compromised phase velocities under standard microwave conditions resulting disrupted oscillation.
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