What is diffraction in RF signals?

What is diffraction in RF signals?

• A. When a signal bends around an object, potentially causing blind spots.
• B. When a signal is absorbed by atmospheric gases with no deflection.
• C. When a signal splits into two frequencies.
• D. When a signal is amplified without distortion.

Answer: (A)

Diffraction in RF signals is the bending and spreading of radio waves as they encounter obstacles or pass through openings. This behavior lets the wave wrap around objects and reach areas that aren’t in direct line of sight, though it can also create weaker zones or blind spots due to interference patterns. The best match is the description that talks about a signal bending around an object and potentially causing blind spots, because diffraction is exactly about how waves propagate around obstacles. Absorption describes energy loss without deflection, splitting into two frequencies points to dispersion or other effects, and amplification without distortion is about increasing signal strength, not changing its path.

Diffraction in RF signals is the bending and spreading of radio waves as they encounter obstacles or pass through openings. This behavior lets the wave wrap around objects and reach areas that aren’t in direct line of sight, though it can also create weaker zones or blind spots due to interference patterns. The best match is the description that talks about a signal bending around an object and potentially causing blind spots, because diffraction is exactly about how waves propagate around obstacles. Absorption describes energy loss without deflection, splitting into two frequencies points to dispersion or other effects, and amplification without distortion is about increasing signal strength, not changing its path.