Physics · Thermal Expansion
Why is a small gap left between two successive rails at their joints in a railway track?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To make the construction process easier
- 2To facilitate better maintenance of the tracks
- 3Because metal expands on heating and contracts on cooling✓
- 4To reduce the vibrations produced by trains
Correct answer
Because metal expands on heating and contracts on cooling
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