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The temperature of a wire is doubled. The Young's modulus of elasticity

Options

  1. AWill become four times
  2. BWill remain the same
  3. CWill decrease
  4. DWill also double

Correct answer

C. Will decrease

Step-by-step solution

Young's modulus of elasticity Y is a material property that depends primarily on the nature of the material and the temperature. When the temperature of a solid increases, the interatomic distances increase due to thermal expansion, which weakens the interatomic forces. As the temperature increases, the atomic vibrations increase, leading to a decrease in the stiffness of the material. Consequently, the Young's modulus of elasticity decreases with an increase in temperature. Therefore, when the temperature of a wir

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