How much radius of earth at equator is grater than the radius at poles of earth ?

Explain the variations of acceleration due to gravity inside and outside the earth and draw the graph.

A particle is dropped on Earth from height $R$ (radius of Earth) and it bounces back to a height $R/2$ the coefficient of restitution for collision is (ignore air resistance and rotation of Earth)

The variation of acceleration due to gravity $g$ with distance $d$ from centre of the earth is best represented by ($R =$ Earth's radius)

A body welghs $200 \;\mathrm{N}$ on the surface of the earth. ......$N$ will it weigh half way down to the centre of the earth?

Given below are two statements:

Statement $I:$ Rotation of the earth shows effect on the value of acceleration due to gravity $(g)$.

Statement $II:$ The effect of rotation of the earth on the value of $g$ at the equator is minimum and that at the pole is maximum.

In the light of the above statements, choose the correct answer from the options given below.