Questions
The length of each rail is 10m. The linear expansion of steel is and the range of variation of temperature at the given place is . So the gap to be provided between the rail is
detailed solution
Correct option is A
change in length due to variation in temperature is Δl=lαΔt here l is initial length=10m;α is coefficient of linear expansion=12×10−6/C 0 Δt is change in temperature=150C Δl=10×12×10−6×15 Δl=180×10−5=18×10−4 Δl=0.0018m=gap between 2 rails to be maintainedTalk to our academic expert!
Similar Questions
The coefficient of linear expansion of brass and steel are and . If we take a brass rod of length and steel rod of length at 0oC, their difference in length will remain the same at all temperatures if
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