Hertzian waves

Target entity: Hertzian waves
Context triple: [Heinrich Hertz, knownFor, Hertzian waves]

• A. Kennelly–Heaviside layer theory
  Kennelly–Heaviside layer theory is an early 20th-century scientific model proposing the existence of a conductive layer in the upper atmosphere that reflects radio waves, helping to explain long-distance radio communication.
• B. Maxwell's equations
  Maxwell's equations are the fundamental set of four equations in classical electromagnetism that describe how electric and magnetic fields are generated and interact with charges and currents.
• C. Rayleigh–Jeans law at low frequencies
  The Rayleigh–Jeans law at low frequencies is the classical approximation for blackbody radiation that accurately describes the long-wavelength, low-energy limit of Planck’s radiation spectrum.
• D. Wavelengths
  Wavelengths is the Toronto International Film Festival’s avant-garde and experimental cinema program, showcasing innovative and boundary-pushing works in film and video.
• E. Huygens–Fresnel principle
  The Huygens–Fresnel principle is a fundamental concept in wave optics that explains how every point on a wavefront acts as a source of secondary wavelets whose interference determines the wave’s subsequent propagation and diffraction.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Hertzian waves
Target entity description: Hertzian waves are early experimentally demonstrated electromagnetic waves that confirmed James Clerk Maxwell’s theory of electromagnetism and paved the way for modern radio communication.

• A. Kennelly–Heaviside layer theory
  Kennelly–Heaviside layer theory is an early 20th-century scientific model proposing the existence of a conductive layer in the upper atmosphere that reflects radio waves, helping to explain long-distance radio communication.
• B. Maxwell's equations
  Maxwell's equations are the fundamental set of four equations in classical electromagnetism that describe how electric and magnetic fields are generated and interact with charges and currents.
• C. Rayleigh–Jeans law at low frequencies
  The Rayleigh–Jeans law at low frequencies is the classical approximation for blackbody radiation that accurately describes the long-wavelength, low-energy limit of Planck’s radiation spectrum.
• D. Wavelengths
  Wavelengths is the Toronto International Film Festival’s avant-garde and experimental cinema program, showcasing innovative and boundary-pushing works in film and video.
• E. Huygens–Fresnel principle
  The Huygens–Fresnel principle is a fundamental concept in wave optics that explains how every point on a wavefront acts as a source of secondary wavelets whose interference determines the wave’s subsequent propagation and diffraction.
• F. None of above. chosen