1.

The angular velocity of rotation of star (of mass M and radius R) at which the matter start to escape from its equator will be                          [MH CET 1999]

A.             \[\sqrt{\frac{2G{{M}^{2}}}{R}}\]
B.               \[\sqrt{\frac{2GM}{g}}\]
C.             \[\sqrt{\frac{2GM}{{{R}^{3}}}}\]
D.               \[\sqrt{\frac{2GR}{M}}\]
Answer» D.               \[\sqrt{\frac{2GR}{M}}\]


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