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Q.

The mass of planet is six times that of earth. The radius of the planet is twice that of the earth. If the escape velocity from the earth is v , then the escape velocity from the planet is :

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a

v

b

3v

c

5v

d

2v

answer is A.

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Detailed Solution

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Escape velocity from the earth ve=2GMR
For a given planet ,ve'=2G(6M)2R=3ve=3v

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