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← ScienceWhich instability arises due to resonant wavelengths in aircraft?
A)Aeroelastic flutter spontaneously increases deflection✓
B)Boundary layer separation increases drag
C)Compressibility causes Mach tuck
D)Vortex shedding stalls control surfaces
💡 Explanation
Aeroelastic flutter induces instability because energy transfers from airflow into structural vibration; a positive feedback loop. Therefore, deflection increases beyond safe limits rather than boundary layer effects altering drag which happens due to viscosity.
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