A spherical shell has uniform density of $6\mathrm{.}0$ kg$/$m$3.$ It has an inner radius $2\mathrm{.}5$ m and outer radius $4\mathrm{.}0$ m$.$ The magnitude of the gravitational force exerted on the shell by a point mass particle of mass $7\mathrm{.}0$ kg a distance $2\mathrm{.}0$ m from the center, is

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$1\mathrm{.}1$ x $10-8$ N $$

$0$ N $$

$2\mathrm{.}7$ x $10-8$ N $$

$6\mathrm{.}5$ x $10-9$ N $$

$3\mathrm{.}3$ x $10-8$ N $$

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