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# A satellite of mass $m_s$ revolving in a circular orbit of radius $r_s$ round the earth of mass M has a total energy E. Then its angular momentum will be

$(a)\;(2Em_sr_s^2)^{1/2} \quad (b)\;(2Em_sr_s^2) \quad (c)\;(2Em_sr_s)^{1/2} \quad (d)\;2Em_sr_s$