Figure shows variation of gravitatioal acceleration a_g of four planets with radial distance r from

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7.Gravitation

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Figure shows the variation of the gravitatioal acceleration $a_g$ of four planets with the radial distance $r$ from the centre of the planet for $r\geq $ radius of the planet. Plots $1$ and $2$ coincide for $r\geq R_2$ and plots $3$ and $4$ coincide for $r \geq R_4$. The sequence of the planets in the descending order of their densities is

A

$1$, $2$, $3$, $4$

B

$4$, $3$, $2$, $1$

C

$2$, $1$, $4$, $3$

D

$1$, $2$, $4$, $3$

Solution

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Physics

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