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If the work done in stretching a wire by 1 mm is 2 J, the work necessary for stretching another

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

(a) 16 J 

(b) 8 J 

(c) 2 J 

(d) 1/2 J

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1 Answer

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Best answer

Correct option (a) 16 J   

Explanation:

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