Question
A rod is fixed between two points at 20°C . The coefficient of linear expansion of material of rod is 1.1 x 10⁻⁵ / °C and Young’s modulus is 1.2 x10¹¹ N / m² . Find the stress developed in the rod if temperature of rod becomes 10°C
Options :
1.32 x 10⁷ N / m²
1.10 x 10¹⁵N / m²
1.32x 10⁸ N / m²
1.10 x 10⁶ N / m²
Answer :
1.32 x 10⁷ N / m²
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