Four typical recent GATE problems are identified for video solutions. Many basic underlying concepts will emerge out which will be helpful in solving any new problem. These points are highlighted during the video solutions.

First problem is of 2015, and is on normal incidence to dielectric media. One has to find the electric field inside the second dielectric.

Second problem is of 2015 (set 2), the electric field component is given one has to find type of polarisation.

Third problem is of year 2014, it is also on determination of plane of polarisation.

Fourth problem is of 2014 and is based on boundary conditions.