Rails of material of steel are laid with gaps to allow for thermal expansion. Each track is 10 m long, when laid at temperature 17^ C . The maximum temperature that can be reached is 45^ C . The gap to be kept between the two segments of ra

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Rails of material of steel are laid with gaps to allow for thermal expansion. Each track is 10 m long, when laid at temperature 17^ C . The maximum temperature that can be reached is 45^ C . The gap to be kept between the two segments of railway track is ( _ stect =1.3 10⁻⁵ / ^ C )

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Correct answer: B. 3.64 mm

array ll & L ₂- L ₁= L ₁ ( t ₂- t ₁ ) & L ₂- L ₁=10 (1.3 10⁻⁵ ) (45-17) & L ₂- L ₁=3.64 ~mm array

Rails of material of steel are laid with gaps to allow for thermal expansion. Each track is 10 m long, when laid at temperature 17^ C . The maximum temperature that can be reached is 45^ C . The gap to be kept between the two segments of railway track is ( _ stect =1.3 10⁻⁵ / ^ C )

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