A brass rod is 2m long at a certain tempera..

Question 1 Report

A brass rod is 2m long at a certain temperature. What is the length for a temperature rise of 100K, if the expansivity of brass is 18 x 10-6K-1?

2.0036m

2.0018cm

2.1800

2.0360m

Answer Details

$α$ = $\frac{L_{2} - L_{1}}{L_{1} \times Δ θ}$

18 x 10-6 = $\frac{L_{2} - 2}{2 \times 100}$

L = 2.0036m