A wire of length 100 0m at 30o has linear expan... - JAMB Physics 2013 Question
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
correct option: d
\(L_2 = L_1 + \alpha(\theta_2 - \theta_1)\)
= 100 + 0.00002(-10-30) = 99.92
= 100 + 0.00002(-10-30) = 99.92
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