Brewster’s Angle as Never Seen Before

• Alejandro Doval ^[1] ; Raul de la Fuente ^[1]
  1. [1] Universidade de Santiago de Compostela

     Universidade de Santiago de Compostela

     Santiago de Compostela, España

     
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 61, Nº. 1, 2023, págs. 52-54
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • In this paper, we discuss a demonstration we have been performing for years with students from different levels, from physics students from our university to high school students in some talks aimed at encouraging them to study science. It provides visualization of Brewster’s angle in an ingenious way using a “loaded” liquid crystal display (LCD) monitor lacking its front polarizing filter. The demonstration is based on observing the hidden image of this loaded LCD reflected in a transparent plate. In some way, we deal with a reverse version of what happens when a vampire faces a mirror and sees no reflected image of himself.