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InterviewSolution
| 1. |
What is the meaning of solid angle?? |
| Answer» It means anhle of 3-D figure<br>Surface area/r^2<br>A steradian is the SI unit of solid angle.It can be defined as the solid angle substended at a center of an unit,sphere by a unit area on its surface.For a general sphere of radius r, any portion on its surface with area A=r2\xa0 | |