Calculate the solid angle subtended by the periphery of an area of 1cm^{2} at a point situated symmetrically at a distance of 5 cm from the area.

Answers (1)

We know that,

Solid angle

(\Omega )=area/ (distance)2

                          = \frac{1 \; cm^{2}}{(5 \; cm)^{2}}

                          =\frac{1}{25}

                          =4\times10^{-2}\; steradian

 

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