Dr. Aamarpali Roy Phd. Chemistry notes Derivation of Lagrangial equation in terms of polar coordinates (r, theta and phi) Contact for Tuition All Boards (English Medium) MOBILE Number :9051345485 For Class 8th -10th:- Science (Physics/chemistry/biology/maths) Class 11th and 12th :- Chemistry/Physics/Biology) B.sc. Part-I/II/III: - Chemistry (Organic/inorganic/physical chemistry) M.sc Part-I & II:-Chemistry (Organic/inorganic/physical chemistry/ spectroscopy)) MOBILE Number :9051345485