Selection Rule of electron transition :-  If a photon light of the right frequency is absorbed by an electron,the elect…

According NTA declared the JEE main 2022 application form release December 3rd week 2022 and the last date to apply for…

Candidates who will become eligible for 15 percent all India quota seats will be eligible for MCC counselling. All Indi…

This year, experts says that for unreserved category students,the score can range 550 above.Actually NEET 2021 expected…

7 IMPOTANT NOTES FOR COMPETITIVE EXAMINATION Introduction:-  These notes is based on the JEE,IIT & NEET Examination…

Selection Rule Of Rigid Diatomic Molecule ∆J = ±1 This rule says that when schrodinger wave equation show that for this…