Why is a small gap left at the joint between two railway tracks?

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Physics · Physics

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Because metal expands on heating and contracts on cooling.

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Mahatma Gandhi's last fast unto death in 1948 was primarily against which of the following?

What was the primary meaning of 'Swaraj' as popularized by Mahatma Gandhi during India's independence movement?

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Answer 1

To make construction easier.

Answer 2

To make maintenance easier.

Answer 3

Because metal expands on heating and contracts on cooling.

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