Question

what is variation in value of g ?​

Answer 1

9.8m/s is the value of universal gravitational constant

Answer 2

$\large\sf{\underline{\underline{Variation \ in \ g}}}$

1] With increase in height from the earth's surface, the value of g "decreases".

2] With increase in depth from the earth's surface ( towards the center of earth ), the value of g "decreases".

$\star$ On the earth's surface, the value of g is 9.8 m/s.