If the mass of the Sun were ten times smaller  and the universal gravitational constant were ten times larger in magnitude, which of the following is not correct? 

Mass of moon is $7.34 \times {10^{22}}\,kg$. If the acceleration due to gravity on the moon is $1.4\,m/{s^2}$, the radius of the moon is $(G = 6.667 \times {10^{ - 11}}\,N{m^2}/k{g^2})$

At what height from the ground will the value of $‘g’ $ be the same as that in $10 \,km$ deep mine below the surface of earth ......... $km$

A body has a weight $90\, kg$ on the earth's surface, the mass of the moon is $1/9$ that of the earth's mass and its radius is $1/2$ that of the earth's radius. On the moon the weight of the body is .......... $kg$

Figure shows variation of acceleration due to gravity with distance from centre of a  uniform spherical planet, Radius of planet is $R$. What is $r_2 -r_1.$

A ball is launched from the top of Mt. Everest which is at elevation of $9000 \,m$. The ball moves in circular orbit around earth. Acceleration due to gravity near the earth's surface is $g$. The magnitude of the ball's acceleration while in orbit is