A wire of length 100.0m at 30o has linear expansive of 2×10-5K-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 Answer: Option D
Explanation
(L_2 = L_1 + alpha(theta_2 – theta_1))
= 100 + 0.00002(-10-30) = 99.92
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