Consider a function f = 1r , where r is distance from origin and r is unit vector. r2, The divergence of this function over a sphere of radius R, which includes origin is.

Consider a function f = 1r , where r is distance from origin and r i

1.	Consider a function f = 1r , where r is distance from origin and r is unit vector. r2, The divergence of this function over a sphere of radius R, which includes origin is.
A.	0
B.	2
C.	4
D.	R .
Answer» D. R .

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Consider a function f = 1r , where r is distance from origin and r is unit vector. r2, The divergence of this function over a sphere of radius R, which includes origin is.

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