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JEE PHYSICS MCQ: GRAVITATION
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The height above the surface of the earth, where acceleration due to gravity is th of its value at surface of the earth is approximately
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Correct option: A
Option A () is correct because it is calculated using the formula for the variation of gravity with height.
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Statement I: An astronaut in a satellite feels weightlessness:
Statement II: As observed by another astronaut's in the same satellite, force of gravity and centrifugal force balance each other. An iron ball and a wooden ball of the same radius are released from a height 'h' in vacuum. The time taken by both of them to reach the ground is
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