WAEC - Physics (2003 - No. 11)
A metal rod of length 100cm is heated through 100ºC, calculate the change in length of the rod [linear expansivity of the material of the rod is 3 x 10\(^{-5}\)K\(^{-1}\)]
4mm
3mm
2mm
1mm
Explicació
\(I_2 - I_1 = I_1 \times \theta \times \alpha = 1 \times 100 \times 3 \times 10^{-5}\)
= 3 x 10\(^{-3}\)m
= 3mm
= 3 x 10\(^{-3}\)m
= 3mm