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| View Original: | Steradian cone and cap.svg (400x350) | |||
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| Courtesy of: | commons.wikimedia.org | More Like This | ||
| Keywords: Steradian cone and cap.svg Diagram showing a section through the centre of a cone 1 subtending a solid angle of 1 steradian in a sphere of radius r along with the spherical cap 2 The fact that the external surface of the cap has an area of r<sup>2</sup> is shown Note that this applies only if the solid angle of the cone is exactly 1 steradian Own drawing Inkscape 2007-09-30 Inductiveload Solid angle | ||||
