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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

`(4pi MR^2)/(5T)`

B

`(2pi MR^2)/(5T)`

C

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

D

`(MR^2 T)/(4pi)`

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