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The length of each steel rail is `10 m` in winter. The coefficient of linear expansion of steel in `0.000012//^(@)C` in summer. The gap to be left bet

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The length of each steel rail is `10 m` in winter. The coefficient of linear expansion of steel in `0.000012//^(@)C` in summer. The gap to be left between the rails
A. `0.0018m`
B. `0.00120m`
C. `0.0022m`
D. `0.05m`

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1 Answer

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Correct Answer - A
`l_(2) - l_(1) = l_(1)alpha(t_(2) - t_(1))`
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