Glass has the ability to refract, reflect, and transmit light following geometrical optics, without scattering it. It is used in the manufacture of lenses and windows. Common glass has a refraction index around 1.5. This may be modified by adding low-density materials such as boron, which lowers the index of refraction (see crown glass), or increased (to as much as 1.8) with high-density materials such as (classically) lead oxide (see flint glass and lead glass), or in modern uses, less toxic oxides of zirconium, titanium, or barium. These high-index glasses (inaccurately known as "crystal" when used in glass vessels) cause more chromatic dispersion of light, and are prized for their diamond-like optical properties.
Glass has the ability to refract , reflect , and transmit light following geometrical optics , without scattering it . It is used in the manufacture of lenses and windows . Common glass has a refraction index around 1.5 . This may be modified by adding low - density materials such as boron , which lowers the index of refraction ( see crown glass ) , or increased ( to as much as 1.8 ) with high - density materials such as ( classically ) lead oxide ( see flint glass and lead glass ) , or in modern uses , less toxic oxides of zirconium , titanium , or barium . These high - index glasses ( inaccurately known as " crystal " when used in glass vessels ) cause more chromatic dispersion of light , and are prized for their diamond - like optical properties .
What is the refraction index of typical glass?
What is the refraction index of typical glass ?
1.5
1.5