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Let V and E denote the gravitational pot...

Let V and E denote the gravitational potential and gravitational field at a point. Then, match the following columns
`{:(,"Column-I",,"Column-II"),("(A)",E = 0","V = 0,"(p)","At centre of spherical shell"),("(B)",E ne0","V=0,"(q)","At centre of solid sphere"),("(C)",V ne0","E=0,"(r)","At centre of circular ring"),("(D)",V ne0","E ne0,"(s)","At cetre of two point masses of equal magnitude"),(,,"(t)","None"):}`

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A, B, C, D
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