Question

express the relation for solid angle​

Answer 1

Answer:

The angle subtended at the center of the sphere by the surface of the sphere is called solid angle. This is a three dimensional angle. Suppose area of the surface which makes a cone on the center (O) of the sphere is 'S' and the radius of sphere is r,then solid angle is defined as. The unit of solid angle is Steradian

Explanation:

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Answer 2

Answer:

The angle subtended at the center of the sphere by the surface of the sphere is called solid angle. This is a three dimensional angle. Suppose area of the surface which makes a cone on the center (O) of the sphere is 'S' and the radius of sphere is r,then solid angle is defined as. The unit of solid angle is Steradian.