question_answer

If the value of ?g? acceleration due to gravity, at earth surface is \[10\,m/{{s}^{2}}\], its value in \[m/{{s}^{2}}\] at the centre of the earth, which is assumed to be a sphere of radius ?R? metre and uniform mass density is                         [AIIMS 2002]

A) 5         

B)             10/R

C)             10/2R  

D)             Zero