The solid angle is defined by a region by the rays of a sphere, and is – McqOptions

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1.	The solid angle is defined by a region by the rays of a sphere, and is measured as
A.	A<sub>n</sub>/r <sup>2</sup>
B.	A<sub>n</sub>/r
C.	A<sub>n</sub>/r <sup>3</sup>
D.	A<sub>n</sub>/r <sup>4</sup>
Answer» B. A<sub>n</sub>/r

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