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# An artificial satellite of mass 'm' is revolving around in a circular orbit of radius 'r'. If the mass of earth is M , angular momentum of the satellite with respect to the centre of earth is ( G-Universal Gravitational Constant)

$\begin {array} {1 1} (1)\;\sqrt{GM\: m^2r} & \quad (2)\;2m \sqrt{GMr} \\ (3)\;2M \sqrt{Gmr} & \quad (4)\;\sqrt{\large\frac{GM}{r}} \end {array}$

(1) $\sqrt{GM\: m^2r}$