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Gaps are left while laying the railway l...

Gaps are left while laying the railway lines in order to allow for expansion. The gap between steel rails of length 65 m is 3.56 cm at `15^@C` . Calculate the temperature at which the rails will just touch each other. Take, `O_("steel") = 1.1 xx 10^(-5)@C^(-1)`

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To solve the problem, we need to calculate the temperature at which the steel rails will just touch each other, given the initial gap and the thermal expansion properties of steel. ### Step-by-Step Solution: 1. **Identify the Given Data:** - Length of the steel rail (L) = 65 m = 6500 cm (since 1 m = 100 cm) - Initial gap (ΔL) = 3.56 cm - Initial temperature (T₀) = 15°C ...
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