The ratio of the radius of a planet A to that of a planet B is “r� – 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)1/2
B.	(p/r)1/2
C.	(pr)
D.	(p/r)
Answer» B. (p/r)1/2

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