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Eamcet Physics
1 st Year : Unit 7.1 ( Properties of Bulk Matter ) - Elasticity

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A uniform metal rod of 2mm² cross section is heated from 0⁰C to 20⁰C. The coefficient of linear expansion of the rod is 12 10^–6/ºC. Its Young’s modulus of elasticity is 10¹¹ Nm^–2. The energy stored per unit volume of the rod is

A. 2880 Jm^–3

B. 1500 Jm^–3

C. 5760 Jm^–3

D. 1440 Jm^–3

E. None of the above

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Correct choice: A

Explanation:

None

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Eamcet Physics 1 st Year : Unit 7.1 ( Properties of Bulk Matter ) - Elasticity

Eamcet Physics
1 st Year : Unit 7.1 ( Properties of Bulk Matter ) - Elasticity