If the mass of the sun were ten times smaller and gravitational constant G were ten times larger in magnitude. Then,

Options

A. g' on the Earth will not change .
B. Reindrops will fall faster
C. Time period of a simple pendulum on the Earth would decrease
D. Walking on the ground would become more difficult.

Answer

A

Explanation

`implies g_E = (GM_E)/(R_E^2)`
There will not be any any change in `g_E` due to decrease in mass of sun `g_E` doesn’t depend on mas of sun .
And `g_E` depends on G.
`:. G_E prop G`
`:. (g.E)/(gE) = (G.)/G
`:.g._E = g_E xx (10G)/(G)`
`:. ` Gravitational acceleration on earth increses by 10 times .