1.

The escape velocity of an object from the earth depends upon the mass of the earth (M), its mean density \[(\rho )\], its radius (R) and the gravitational constant (G). Thus the formula for escape velocity is                           [MP PMT 1995]

A.             \[v=R\sqrt{\frac{8\pi }{3}G\rho }\]
B.               \[v=M\sqrt{\frac{8\pi }{3}GR}\]
C.             \[v=\sqrt{2GMR}\]
D.               \[v=\sqrt{\frac{2GM}{{{R}^{2}}}}\]
Answer» B.               \[v=M\sqrt{\frac{8\pi }{3}GR}\]


Discussion

No Comment Found

Related MCQs