A cube made of metal of linear expansivity \(\alpha\) is heated through a temperature \(\theta\). If the initial volume of the cube is Vo, the correct expression for the increase in volume of the cube is
- \(\frac{1}{3} \alpha V_o \theta\)
- \(\frac{1}{2} \alpha V_o \theta\)
- \(2 \alpha V_o \theta\)
-
\(3 \alpha V_o \theta\)
