Explanation:
When copper rod is heated , its length increases
The increase in length can be found by the relation
L = L₀ ( 1 + α ΔT )
here L is the increased length and L₀ is the original length
α is the coefficient of linear expansion and ΔT is the increase in temperature .
The increase in length = L - L₀ = L₀ x α ΔT
Substituting all these value
Increase in length = 27.5 x 1.7 x 10⁻⁵ x 35.9
= 1.87 x 10⁻² m
Answer:0.01678325m
Explanation:
Original length(L1)=27.5m
Temperature rise(@)=35.9°C
Linear expansivity(α)=0.000017
Length increase(L)=?
L=α x L1 x @
L=0.000017 x 27.5 x 35.9
L=0.01678325m
