Saturday, November 7, 2020

Today (November 7, 1888) is the birthday of Sir C.V Raman, the first tamil Nobel laureate in India to discover the wavelength change in light waves.

Today (November 7, 1888) is the birthday of Sir C.V Raman, the first Tamil Nobel laureate in India to discover the wavelength change in light waves.

 

Sir Chandrasekhara Venkata Raman was born on November 7, 1888, in Thiruvanaikaval, near Tiruchirappalli in Tamil Nadu. Chandrasekara Venkatraman's father, Chandrasekar Iyer was a teacher. Venkatraman completed his schooling there as his father worked as a physics lecturer in Visakhapatnam. He graduated from the Presidency College, Chennai in 1904 with a B.A. and a Gold Medal in Physics. Venkatraman continued his postgraduate studies at the same college. In January 1907 he passed the M.A. Graduation Examination with first-class marks in all subjects. In February 1907 he wrote the Finance Examination and won first place. He began his career in June 1907 as Chief Accountant in Calcutta.

 

C. V. After graduating, Raman joined the Government of India in 1907 as an accountant due to a lack of employment opportunities in the field of science. However, in addition to his work, he has been conducting process (recipe) studies on scattering at the Indian Association for the Cultivation of Science, founded by Dr Mahendralal Sarkar in Kolkata. He then joined the newly established Faculty of Polytechnic Physics at the University of Calcutta in 1917. After 15 years in Kolkata, he spent 15 years at the Indian Institute of Science in Bangalore. He then worked as a director until his last days at the Raman Research Insitute, which he founded.

 scientist_page30Raman Effect by Prakash on Dribbble

C.V Raman was a delegation from the University of Calcutta to the 1928 Conference of Scientists in Europe. Raman was reading a book on the ship's open space while sailing in the Mediterranean. Meanwhile, Raman had a strange feeling when he saw the sky. He began to think about why the Mediterranean sky is so dark blue. At the time, he had no answer. But that suspicion lingered in my mind. After completing his voyage to Europe, he returned home to study the colour of the sky. As a result, light-transmitting media can be solid, liquid, or gaseous.

 InPhotonics: What is Raman spectroscopy?Molecular Vibrations

He discovered the wavelength change in scattered light waves as light passes through an object. The Raman effect is the name given to the wavelength change of such scattered light. He was awarded the Nobel Prize for this discovery. This discovery is very useful and world-renowned today for finding many properties of objects (without causing any harm to the object). He also studied the violin and other musical instruments and made new discoveries. He also explains why the sky is blue during the day. His nephew Subramanian Chandrasekhar also received the Nobel Prize. He used a spectrograph during his research. By directing sunlight through various media, he noticed that some new ‘colour lines’ appeared on the spectrometer. We see the rainbow, don't we? Raman also figured out how it develops. This was later called the 'Raman effect' and his invention the 'Raman effect.

 Latest Raman GIFs | GfycatBest Infrared Spectroscopy GIFs | Gfycat

In 1926, C.V Raman founded and edited the Indian Journal of Physics, a scientific journal. He started the Indian Academy of Sciences and later served as its President from the very beginning. He was also at the forefront of publishing its scientific currents. He also founded and served as the President of the Current Science Association in Bangalore, and founded a science laboratory called Current Science, which became famous through the Institute. In the Journal of Indian Physics (Indian J. Physics),, he published the results of a study on February 28, 1928, entitled A New Radiation, along with Srinivasa Krishna, the charcoal of his research findings. Now the scientific light effect has led him to win the Nobel Prize and to have a scientific effect name in his name. It is noteworthy that he published in the Indian Journal.

 

In 1947, he was appointed the first National Professor in the new government of independent India. In 1948, he retired from the Indian Institute. The British government conferred on him the title of "Knighthood" in 1929. In 1929 he was made Sir by the Government of England. Italy's highest medal, the "Meducci" Medal. The King of Mysore conferred the title of "Rajabapusan" in 1935. Philadelphia was awarded the "Franklin" Medal in 1941.

 

The highest award of India, the Bharat Ratna, was conferred on him in 1954 during his lifetime. In 1957 he was awarded the All-World "Elaine Prize". Sir CV Raman, a Nobel laureate who discovered the wavelength change in light waves, passed away on November 21, 1970,, in Bangalore at the age of 82. Sir. February 28 was declared National Science Day by C.V Raman, who published his Nobel Prize-winning research results. The first Nobel Prize was awarded in 1930 to a fully educated scholar in India.

Source By: Wikipedia

Information: Ramesh, Assistant Professor of Physics, Nehru Memorial College, Puthanampatti, Trichy.



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