Young's modulus of rubber is 104 N/m2 and area of cross-section is 2 cm2 . If force of 2×105 dynes is applied along its length, then its initial length l becomes
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Young's modulus of rubber is 104 N/m2 and area of cross-section is 2 cm2 . If force of 2×105 dynes is applied along its length, then its initial length l becomes