In CGS system, the Young′s modulus of a steel wire is 2 × 1012 dyne/cm2.To double the length of a wire of unit cross-section area, the force required is :

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Question

In CGS system, the Young′s modulus of a steel wire is 2 × 10¹² dyne/cm².To double the length of a wire of unit cross-section area, the force required is :

Options

A.4 × 10⁶ dynes

B.2 × 10¹² dynes

C.2 × 10¹⁴ dynes

D.2 × 10⁸ dynes

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