Answer:
0.25705 cm or 2.5705×10⁻³ m
Explanation:
Applying,
α = ΔL/(LΔT)................. Equation 1
Where α = coefficient of linear expansivity, ΔL = Increase in length, L = Original length, ΔT = Increase in temperature
make ΔL the subject of the equation
ΔL = α(LΔT)............... Equation 2
From the question,
Given: α = 10⁻⁶ C⁻¹, L = 4850 cm, ΔT = T₂-T₁ = (55-2) = 53 °C
Substitute these values into equation 2
ΔL = (10⁻⁶)(4850)(53)
ΔL = 0.25705 cm or 2.5705×10⁻³ m
