Derive an expression for the height of capillary rise between two parrallel plates dipping in a liquid of density `sigma` separated by a distance `d`. The surface tension of the liquid is `T`.

Explanation

To derive the expression for the height of capillary rise between two parallel plates dipping in a liquid, we can follow these steps:

### Step 1: Understand the Setup
We have two parallel plates separated by a distance \( d \) and dipping into a liquid with density \( \sigma \). The surface tension of the liquid is \( T \). We need to find the height \( h \) of the liquid column that rises between these plates due to capillary action.

### Step 2: Identify Forces Acting on the Liquid Column
When the liquid rises between the plates, there are two main forces acting on it:
1. **Upward Force due to Surface Tension**: This force arises from the surface tension acting along the length of the plates.
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