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    • Question

      A rod of length 2 m expands by 2 mm when heated. If

      coefficient of linear expansion is 1 x 10-5 / 0C, find temperature change.
      A 50º C Correct Answer Incorrect Answer
      B 75º C Correct Answer Incorrect Answer
      C 100º C Correct Answer Incorrect Answer
      D 200º C Correct Answer Incorrect Answer

      Solution

      ΔL = LαΔT ⇒ 0.002 = 2 x 10-5 x ΔT ⇒ ΔT = 100o C

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