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The earth is an approximate sphere. If the interior contained matter which is not of the same density everywhere, then on the surface of the earth, the acceleration due to gravity.

Answer» <html><body><p>will be directed towards the centre but not the same everywhere<br/>will have the same value everywhere but not directed towards the centre<br/>will be same everywhere in <a href="https://interviewquestions.tuteehub.com/tag/magnitude-1083080" style="font-weight:bold;" target="_blank" title="Click to know more about MAGNITUDE">MAGNITUDE</a> directed towards the same<br/>cannot be <a href="https://interviewquestions.tuteehub.com/tag/zero-751093" style="font-weight:bold;" target="_blank" title="Click to know more about ZERO">ZERO</a> at any point</p>Solution :If we assume the earth as a sphere of uniform density, then it can bee treated as point <a href="https://interviewquestions.tuteehub.com/tag/mass-1088425" style="font-weight:bold;" target="_blank" title="Click to know more about MASS">MASS</a> placed at its centre. In it is is not so, if the earth is <a href="https://interviewquestions.tuteehub.com/tag/considered-7257760" style="font-weight:bold;" target="_blank" title="Click to know more about CONSIDERED">CONSIDERED</a> as a sphere of non-uniform density, in that case value of g will be <a href="https://interviewquestions.tuteehub.com/tag/different-951434" style="font-weight:bold;" target="_blank" title="Click to know more about DIFFERENT">DIFFERENT</a> at different points and cannot be zero at any point.</body></html>


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