# If work done in stretching a wire by 1 mm is 2 J, the work necessary for stretching another wire of same material, but with double the radius and half

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If work done in stretching a wire by 1 mm is 2 J, the work necessary for stretching another wire of same material, but with double the radius and half the length by 1 mm in joule is

(A) 1/4

(B) 4

(C) 8

(D) 16

by (38.7k points)

Correct option is: (D) 16