Kotcherlakota Rangadhama Rao (1898-1972)

Kotcherlakota Rangadhama Rao was an Indian physicist in the field of Spectroscopy. Rangadhama Rao is best known for his work on spectroscopy and his role in the development of Nuclear Quadrupole Resonance.

Life of Rangadhama Rao

Kotcherlakota Rangadhama Rao was born in Vizianagaram in Andhra Pradesh on 9 September 1898 to Kotcherlakota Venkata Narsing Rao and Ramayamma. His elementary education was at Maharaja's High School, Vizianagaram. 

He passed his 10th grade from C.B.M. High School at Visakhapatnam and his Intermediate from Mrs. A.V.N. College at Visakhapatnam. 

Rao did his BA from the Maharajah's College in Vizianagaram and took his M.A. in Physics from Tiruchirappalli in 1923. He was awarded the D.Sc. Degree from Madras University and was selected for studies abroad from the Andhra University in 1928.

Works of Rangadhama Rao

Prof Kotcherlakota Rangadhama Rao did immense work in the field of Spectroscopy. He is best known for his work on spectroscopy. His role in the development of Nuclear Quadrupole Resonance is also remarkable. In 1924 Rao joined Dr AL Narayan as a research scholar in University of Madras. 

Both of them worked to build up a first rate spectroscopic laboratory. Prof Rao's contributions to physics include development of Diatomic and Polyatomic Molecular Spectroscopy laboratory dealing with High Resolution Vibrational structure in electronic transitions, Infrared Absorption, UV Absorption, Raman scattering, Fluorescence and Phosphorescence and Crystal Spectra. 

Rao also reached the level of construction of microwave test benches and using these techniques he created different lines of investigations in dielectrics. 

Prof Rao also contributed to the development of Radio Frequency Spectroscopy which branched into Nuclear Quadrupole Resonance, Nuclear Magnetic Resonance and Electron Spin Resonance spectroscopy. 

In India work on Nuclear Quadrupole Resonance was first initiated by Prof K Rangadhama Rao in the Physics laboratories of Andhra University.

Rao had long association with the physics laboratories of Andhra University. He also became the Principal of all the colleges of Andhra University before their divisions into separate colleges, ie AU College of Arts and Commerce, AU College of Law, AU College of Pharmacy, AU College of Engineering and AU College of Science and Technology.

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