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Two 10.0 m long iron rails are separated by 1.0 cm. The value of $α$ for iron is $1 \times 10^{- 5} / C ° .$ If the initial temperature is $0 ° C$ , the temperature at which the rails will touch is

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detailed solution

Correct option is B

ΔL=LαΔθ, here ΔL=1cm

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Two 10.0 m long iron rails are separated by 1.0 cm. The value of α for iron is 1×10−5/C°. If the initial temperature is 0°C, the temperature at which the rails will touch is

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Ready to Test Your Skills?

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Two 10.0 m long iron rails are separated by 1.0 cm. The value of $α$ for iron is $1 \times 10^{- 5} / C ° .$ If the initial temperature is $0 ° C$ , the temperature at which the rails will touch is