The ratio of the radius of a planet A to that of a planet B is r . Th – McqOptions

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1.	The ratio of the radius of a planet A to that of a planet B is r . The ratio of acceleration due to gravity on the planets is p . The ratio of escape velocities of the two planets is _____
A.	(pr)<sup>1/2</sup>
B.	(p/r)<sup>1/2</sup>
C.	(pr)
D.	(p/r)
Answer» B. (p/r)<sup>1/2</sup>

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