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if the earth is treated as a sphere of r...

if the earth is treated as a sphere of radius Radn mass M, Its angular momentum about the axis of its rotation with period T, is

A

`(piMR^(3))/T`

B

`(MR^(2pi))/T`

C

`(2piMR^(2))/(5T)`

D

`(4piMR^(2))/(5T)`

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