Span of a bridge at 10∘C is 2.4 km long. At 30 ∘C, the cable along the span sags by 0.5 km. Change in length of the cable when temperature changes from 10∘C to 42∘C is [ α=12×10−6/ ∘C ]

Span of a bridge at 10∘C is 2.4 km long. At 30 ∘C, the cable along

1.	Span of a bridge at 10∘C is 2.4 km long. At 30 ∘C, the cable along the span sags by 0.5 km. Change in length of the cable when temperature changes from 10∘C to 42∘C is [ α=12×10−6/ ∘C ]
Answer» Span of a bridge at $10^{\circ} C$ is $2.4 km$ long. At $30^{\circ} C$ , the cable along the span sags by $0.5 km$ . Change in length of the cable when temperature changes from $10^{\circ} C$ to $42^{\circ} C$ is $[α = 12 \times 10^{- 6} /^{\circ} C]$

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Span of a bridge at 10∘C is 2.4 km long. At 30 ∘C, the cable along the span sags by 0.5 km. Change in length of the cable when temperature changes from 10∘C to 42∘C is [ α=12×10−6/ ∘C ]

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