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 ?

Acceleration at a radial distance 'r' from the surface of earth is given by g = $\frac{G{M}_e}{r^2}$ .So increase in mass of earth does not affect 'g' but due to increase in 'G' value of 'g' on earth increases.

Time of fall of rain drops $=\sqrt{\frac{2h}{g}}$.Time period of simple pendulum is T =$=2\pi \sqrt{\frac{l}{g}}$

Also more the value of 'g' more the walking becomes difficult.