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MHT CET202013 Oct 2020Evening ShiftPhysicsThermal Properties of MatterActual

A metal rod of Young's modulus 'Y' and coefficient of linear expansion ' ^ has its temperature raised by ' ^ . The linear stress to prevent the expansion of rod is (L and is original length of rod and expansion respectively)

Options

  1. AY L
  2. BY
  3. CY
  4. DY ( L )²

Correct answer

C. Y

Step-by-step solution

For thermal expansion L = L If rod is compress by L then aligned L =& FL AY FL AY &= L F A = Y aligned

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