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← ScienceWhich outcome occurs when a radio wave encounters a sudden increase in atmospheric electron density at the ionosphere?
A)Increased wave refraction occurs✓
B)Wave amplitude remains consistent
C)Doppler shift becomes negligible
D)Wavelength remains unchanged
💡 Explanation
Increased atmospheric electron density causes increased wave refraction because the refractive index changes abruptly, therefore, the wave bends following Snell's law rather than propagating straight through; these conditions alter the propagation direction.
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