What is the final equation obtained in the problem of the thermometer? The problem involves the dilatation of a liquid and a glass reservoir, as w...

What is the final equation obtained in the problem of the thermometer?

The problem involves the dilatation of a liquid and a glass reservoir, as well as the expansion of a capillary tube.
The final equation relates the initial and final volumes of the liquid, the reservoir, and the capillary tube.
V0(1 + β∆T ) = V0(1 + 3α∆T ) + πd20(1 + α∆T )2h
V0(1 + β∆T ) = V0(1 + 3α∆T ) + πd2(1 + α∆T )2h
V0(1 + β∆T ) = V0(1 + 3α∆T ) + πd20(1 + α∆T )h
V0(1 + β∆T ) = V0(1 + 3α∆T ) + πd2(1 + α∆T )h