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← ScienceWhich outcome results when a RADAR pulse encounters atmospheric temperature inversion layer?
A)Increased signal propagation distance✓
B)Reduced signal frequency deviation
C)Decreased atmospheric signal absorption
D)Elevated signal reflection coefficient
💡 Explanation
When a RADAR pulse encounters a temperature inversion, radio waves are refracted downwards due to differing air densities associated with varying temperatures in those layers, causing ducting and thus, greater propagation distances. Therefore increased range occurs rather than frequency deviation, absorption, or reflection, which require other atmospheric phenomena.
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