A wire of length 100.0m at 30o has linear expansive of 2x10-5K-1 Calculate the length of the wire at a temperature of - 10oC
A
100.08m
B
100.04m
C
99.96m
D
99.92m
Verified Correct Answer: D.
Physical Principles & Numerical Solution
\(L_2 = L_1 + \alpha(\theta_2 - \theta_1)\)
= 100 + 0.00002(-10-30) = 99.92
Source: Myschool Past Questions Archive (Record #27323)