title: Extinction paradox
text: # Extinction paradox
  
  In the small wavelength limit, the total scattering cross-section of an impenetrable sphere is twice its geometrical cross-sectional area (which is the value obtained in classical mechanics).
  
  Several explanations for this phenomenon have been proposed:
  
  * destructive interference inside particle shadow
  * diffraction and shadowing of light by particle
  * superposition of incident and scattered field
  * cancellation of incident wave inside particle
  