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← ScienceWhat consequence results when atmospheric ducting occurs during microwave propagation?
A)Extended communication range occurs✓
B)Refraction index gradient decreases
C)Increased tropospheric signal scattering
D)ionospheric reflection fades quickly
💡 Explanation
Atmospheric ducting traps microwaves between atmospheric layers due to temperature inversions, so total internal reflection ensures the propagation is less attenuated. Therefore, range extends because waves no longer uniformly emanate outwards, rather being guided within the ducting layer.
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