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JEE Main Physics question

PhysicsThermal Properties of MatterJEE Main

Two wires and of same length, same area of cross-section having the same Young's modulus are heated to the same range of temperature. If the coefficient of linear expansion of is times that of , the ratio of the forces produced in two wires will be

Answer: (D)

Solution

The force needed to prevent thermal expansion is . With the same

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Question ID VK-155194