JAMB - Physics (1982 - No. 17)
A rod of length 10cm is heated through 100oC and its final length is 10.26cm. What is the co-efficient of linear expansion of the rod?
0.026 per degree centigrade
0.00026 per degree centigrade
0.26 per degree centigrade
1.0026 per degree centigrade
0.0026 per degree centigrade
ব্যাখ্যা
\(\alpha\) = \(\frac{L_2 - L_1}{L_1 \times \theta}\)
= \(\frac{10 - 26 - 10}{10 \times 100}\)
= 2.6 x 10-4oC
= \(\frac{10 - 26 - 10}{10 \times 100}\)
= 2.6 x 10-4oC