A brass rod of length L and cross section area 2 cm2 is attached end to end to a steel rod of length 2m and cross sectional area 1 cm2. The compound rod is subjected to equal and opposite tensile force of magnitude 5 × 104 N at its ends. If the elongation of the two rods are equal. Then the length of brass rod is [Ybrass = 1011 N/m2, Ysteel = 2 × 1011 N/m2]

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Question

A brass rod of length L and cross section area 2 cm² is attached end to end to a steel rod of length 2m and cross sectional area 1 cm². The compound rod is subjected to equal and opposite tensile force of magnitude 5 × 10⁴ N at its ends. If the elongation of the two rods are equal. Then the length of brass rod is [Y_brass = 10¹¹ N/m², Y_steel = 2 × 10¹¹ N/m²]

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