Eamcet Physics - 1 st Year : Unit 7.7 ( Properties of Bulk Matter ) - Expansion of Solids Free Online Tests | Mock Tests | Preparation | Practice Tests

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1 st Year : Unit 7.7 ( Properties of Bulk Matter ) - Expansion of Solids

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Two rods of different materials and identical cross sectional areas are joined face to face at one end and their free ends are fixed to the rigid walls. If the temperature of the surroundings is increased by 30°C, the magnitude of the displacement of the joint of the rod is (length of rods l₁=l₂=1unit, ratio of their Young's modulii, y₁/y₂=2, coefficients of Linear expansion are α₁ and α₂)

A. 5(α₂ - α₁)

B. 10(α₂ - α₁)

C. 5(α₁ - α₂)

D. 10(α₁ - α₂)

E. None of the above

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Correct choice: B

Explanation:

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Eamcet Physics 1 st Year : Unit 7.7 ( Properties of Bulk Matter ) - Expansion of Solids

Eamcet Physics
1 st Year : Unit 7.7 ( Properties of Bulk Matter ) - Expansion of Solids