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If *W*_{1}, *W*_{2} and *W*_{3} represent the work done in moving a particle from *A* to *B* along three different paths 1, 2 and 3 respectively (as shown) in the gravitational field of a point mass m, find the correct relation between *W*_{1}, *W*_{2} and *W*_{3}** **

(1) *W*_{1} > *W*_{2} > *W*_{3}

(2) *W*_{1} = *W*_{2} = *W*_{3}

(3) *W*_{1} < *W*_{2} < *W*_{3}

(4) *W*_{2} > *W*_{1} > *W*_{3}