Assertion (A): A small gap is left between railway tracks. Reason (R): Iron expands in summer.

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Assertion (A): A small gap is left between railway tracks. Reason (R): Iron expands in summer. — Exam MCQ

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C. Both A and R are true, and R correctly explains A — Gaps in jointed rails allow thermal expansion when the rails become hot, helping prevent buckling.

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A. A is true but R is false

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B. A is false but R is true

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D. Both A and R are true, but R does not correctly explain A

Assertion (A): A small gap is left between railway tracks. Reason (R): Iron expands in summer.

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