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The value of gravitational acceleration at a height above the earth's surface is then ( is radius of earth)
(a)
(b)
(c)
(d)

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Important Questions on Gravitation
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Let and be the acceleration due to gravity at height above the earth's surface and at depth below the earth's surface respectively. If then the relation between and is

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The acceleration due to gravity at a height above the earth is the same as at a depth below the surface of the earth. Then:

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The value of acceleration due to gravity at a depth of is equal to

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The value of the acceleration due to gravity at a point above the earth's surface and below the earth's surface are respectively

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A body is raised to a height from the surface of the earth of radius . The ratio of acceleration due to gravity on the surface to that at a given height is

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The diameters of two planets are in the ratio and their mean densities in the ratio . The acceleration due to gravity on the planets will be in the ratio

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The ratio of acceleration due to gravity at a height above - earth's surface to the acceleration due to gravity on the surface of the earth is

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The variation of acceleration due to gravity with distance from the centre of the earth is best represented by is Earth's radius)
