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
- 100.08m
- 100.04m
- 99.96m
-
99.92m
The correct answer is: D
Explanation
\(L_2 = L_1 + \alpha(\theta_2 - \theta_1)\)= 100 + 0.00002(-10-30) = 99.92
There is an explanation video available .