Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Ravi bhushan
Here is the detailed solution. They have directly written the solution. Therefore you couldn't understand. See my method. You can also find this by using second order energy correction.
Sir, I'm seeing here Perturbed part, unperturbed part... is perturbation part in jam syllabus. If it is where to study it from?
Perturbation theory is a chapter in Quantum Mechanics. Perturbation theory is not in the syllabus of IIT jam. So, You don't have to study this chapter. But this question is from perturbation theory. Please download the IIT jam syllabus and prepare according to the syllabus.
Perturbation Theory is in CSIR NET syllabus.