A mass of


A mass of $50 \mathrm{~kg}$ is placed at the centre of a uniform spherical shell of mass $100 \mathrm{~kg}$ and radius $50 \mathrm{~m}$. If the gravitational potential at a point, $25 \mathrm{~m}$ from the centre is $\mathrm{V} \mathrm{kg} / \mathrm{m}$. The value of $\mathrm{V}$ is :

  1. $-60 \mathrm{G}$

  2. $+2 G$

  3. $-20 \mathrm{G}$

  4. $-4 \mathrm{G}$

Correct Option: , 4



$=\left[-\frac{50}{25} \mathrm{G}-\frac{100}{50} \mathrm{G}\right]$

$=-4 \mathrm{G}$

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