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Sahay Sir > Question Answers > NCERT Exemplar Class 12 > Physics > Chapter 9 - Ray Optics and Optical Instruments > Show that for a material with refractive index μ ≥ 2–√, light incident at any angle shall be guided along a length perpendicular to the incident face.

Show that for a material with refractive index μ ≥ 2–√, light incident at any angle shall be guided along a length perpendicular to the incident face.

light incident at any angle shall be guided along a length perpendicular to the incident face. Show that for a material with refractive index μ ≥ 2–√