An astronaut on a strange planet finds that acceleration due to gravity is twice as that on the surface of earth. Which of the following could explain this?
Text Solution
Verified by ExpertsThe correct answer is:
A
Acceleration due to gravity on the surface of the earth is
where and
are the mass and the radius of the earth respectively.
Acceleration due to gravity on the surface of the planet is
where and
be the mass and the radius of the planet respectively.
If both mass and radius of the planet are half as that of the earth, then
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