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← ScienceWhich outcome occurs when radio waves propagate through a dielectric lens?
A)Focusing due to refraction✓
B)Diffraction cancels wave fronts
C)Reflection causes total dispersion
D)Attenuation reduces phase velocity
💡 Explanation
Focusing occurs because the change in refractive index causes electromagnetic wave bending, or refraction; the mechanism follows Snell's Law. Therefore constructive interference at the focal point results, rather than destructive ones, which would mean diffraction effects are negligible.
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