The type of processes represented by the curves X and Y are:

In the given question, we are given a P-V diagram (Pressure vs Volume graph) with two curves labeled as X and Y.
- The curve X represents an Isothermal process, where temperature remains constant and the curve shows a hyperbolic shape.
- The curve Y represents an Adiabatic process, where the system undergoes a process with no heat exchange, and the curve typically has a steeper slope than an isothermal curve.
Thus, curve X represents an isothermal process and curve Y represents an adiabatic process.
Two charges \( +q \) and \( -q \) are placed at points \( A \) and \( B \) respectively which are at a distance \( 2L \) apart. \( C \) is the midpoint of \( AB \). The work done in moving a charge \( +Q \) along the semicircle CSD (\( W_1 \)) and along the line CBD (\( W_2 \)) are 
Find work done in bringing charge q = 3nC from infinity to point A as shown in the figure : 