The value of at a particular point is . Suppose the earth suddenly shrinks uniformly to half its present size without losing any mass. The value of at the same point (assuming that the distance of the point from the centre of earth does not shrink) will now be |
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a) |
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The value of at a particular point is . Suppose the earth suddenly shrinks uniformly to half its present size without losing any mass. The value of at the same point (assuming that the distance of the point from the centre of earth does not shrink) will now be |
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a) |
b) |
c) |
d) |

The potential energy of 4-particalse each of mass 1 kg placed at the four vertices of a square of side length 1 m is |
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a) |
b) |
c) |
d) |

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