C V Raman

 2 Best Essay on ” C.V. Raman”

India: Nobel Laureate Physicist

Birth:1888        Death: 1970

Dr.Chandra Shekhar Venkat Raman is one of the most distinguished scientists of the 20th century. His discovery known as the `Raman Effect’ made a very distinctive contribution to physics. For this discovery, he was awarded the Nobel Prize in Physics in 1930. He was the first Indian Scientist and also the first Asian to receive a Nobel Prize in Physics. This discovery of Raman is significant for one more reason. C.V. Raman studied and conducted his scientific researches living in India while there was the widely shared notion that no great scientific discovery could be made under the then existing scientific facilities in India. The scientific talent of Raman appeared at a very young age. His first Research paper, “The unsymmetrical diffraction bands due to a rectangular aperture” was published in London’s Philosophical Magazine when he was only 18. This research made Raman famous in the world’s scientific circles. Later on, he made many important discoveries in light, sound, and magnetism.

Dr. C.V. Raman was born on 7th November 1888 in Tiruchirappalli (Tamil Nadu). His father’s name was Chandra Shekhar Aiyer who had a special interest in science and mathematics. His mother Parvati was a cultured lady. Raman was very intelligent since his early childhood. lie passed his matriculation when he was only 12. In 1904, when he was only 16, he passed his B.A. from the Presidency College, Madras, and was the only student to get a first-class. He did his M.A. in Physics from the same college and broke all previous records. Then he appeared for a competitive examination of the Finance Department (Accountant General) in Calcutta, but he was interested in scientific researches. Prof. Ashutosh Mukherjee, then Vice-Chancellor of Calcutta University offered him a teaching post. Raman left his highly paid government job to become a Professor of science. In 1914, a science college was established in Calcutta and Raman was appointed its Principal. In 1921, he was awarded the degree of ‘Doctor of Science’ by the Calcutta University, and in 1924, he was elected a Fellow of the Royal Society of London. In 1928, Raman was elected President of the Indian Science Congress and in 1929, the British government in India conferred on him the title of ‘Sir’. From 1933 to 1948, he was the Director of the Indian  Institute of Science, Bangalore.

Meanwhile, he continued to carry out different types of experiments and researches on the sun rays passing through water, transparent ice blocks, and other media. For these experiments, Raman used a mercury arc and a spectrograph. Raman obtained some new lines in the; spectrum on passing the sun rays through different substances. These lines were later called ‘Raman Lines’ and this discovery the ‘Raman Effect’. For this discovery, he was awarded the Nobel Prize in Physics in help in the industrial development of the world. The government of India the same discovery. This discovery of Raman rendered the most valuable 1930. The Royal Society of London also awarded him the `Hume Medal’ for also honored him with the highest honor of the country ‘Bharat Ratna’ in 1954. Dr. C.V. Raman led a simple life. He passed away in Bangalore on 21 November 1970.

Essay No. 02

C.V. Raman

Chandrasekhar Venkata Raman was one of the prominent personalities of the 20th century. His discovery of the Raman Effect was a milestone in the field of science.

C.V. Raman was born on 7 November 1880 at Thiruvanaildcaval near Tiruchirapally, Tamil Nadu. Raman was a brilliant student. He had his studies at Vishakhapatnam and Madras. He passed his matriculation when he was only 12 years old. He graduated from Presidency College, Madras at the age of 16. He was the only student to get a first-class. He wanted to go to England for higher studies. But he was disqualified on medical grounds. He completed his Master’s Degree in Physics from the same college.

Raman’s father, Chandra Sekhar Aiyer was a teacher in a college. He had a special interest in science and mathematics., Raman thus grew up in an atmosphere of books. The scientific talent of Raman appeared at a very young age. He did research work in acoustics and optics.

Raman took up a government job as an Assistant Accountant General in the finance department. He was posted in Kolkata. He married Lokasundari. Raman dedicated his life to science. He became involved with the Indian Association for the Cultivation of Science. Raman’s scientific research was confined to musical instruments. Raman served the Government for 10 years. After that, he resigned from his job. He was appointed as Professor. of Physics at the  University of Kolkata in1917. He worked there till 1933. He was also the Secretary of the Indian Association of the Cultivation of Science. Raman carried out experiments related to light, X-rays, magnetism, and crystals.

In 1921, he attended the Universities Congress Science meet held at Oxford, London. Seeing the Mediterranean sea, he wondered why the water had such a dark shade of blue. The light became the subject of Raman’s study. Back in Kolkata, he worked on the same.

Raman took up the study of scattering of light by molecules of seawater, then various types of liquids, solids, and gases. During this time, he was elected a Fellow of the Royal Society, London in 1924. He toured the United States and Europe and carried out his research works.

In 1929, Raman received a knighthood. In 1930, he became the first Indian and the first Asian to win the Nobel Prize for Physics. In 1933, Raman was appointed Director of the Indian Institute of Sciences Bangalore. He founded the “Indian Journal of Physics” and the Indian Academy of Sciences to encourage the scientific talent in the country. After the independence of India, he was offered the post of the Vice-President of India. But he refused the offer. C.V. Raman died on 21 Nov. 1970 in Bangalore.