Radiation Intensity

Section 12.3

radiation + geometryyyyy

Figure 12.6 - Mathematical definitions (a) Plane angle. (b) Solid angle. (c) Emission of radiation from a differential area into a solid angle subtended by at a point on . (d) The spherical coordinate system.

ME3304 S24 Lecture Note (7) Radiation, 14A - 2nd Class, 14E - 2nd Class