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A rail track made of steel having a length of 10 m is clamped on a railway line at its two ends (Figure). On a summer day, due to a rise in temperature by 20°C, it is deformed as shown in the figure. What is the displacement of the center, denoted as x, if the coefficient of linear expansion for steel is αsteel = 1.2 × 10 -5 /°C?

Options

  1. A10 cm
  2. B11 cm
  3. C12 cm
  4. D13 cm

Correct answer

B. 11 cm

Step-by-step solution

Correct Option is : (B) 11 cm

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