CV Raman Birth Anniversary 2023: November 7, 1888 marks the birthday of Indian physicist CV Raman. In 1930, Professor CV Raman received the Nobel Prize in Physics for the Raman effect. He became the first person in Asia (physics category) to win this prestigious award.
CV Raman Timeline
CV Raman Birth Anniversary 2023: Indian physicist CV Raman was born on November 7, 1888. In 1930, Professor CV Raman won the Nobel Prize in Physics for the Raman effect. He became the first person of Asian origin to win this prestigious award.
Key data for the van
- In 1930, Professor CV Raman received the Nobel Prize for Physics.
- He became the first person of Asian origin to win this prestigious award.
- In addition to his achievements in the field of light, he was also a specialist in the study of sound.
The famous physicist CV Raman was born in Tiruchirapalli, Tamil Nadu on November 7, 1888. His full name is Chandrashekhara Venkata Raman. The professor received the Nobel Prize for his research on light scattering and the discovery of the Raman effect.
READ: CV Raman Biography: Early Life, Family, Education, Career, Awards and Achievements
History and timeline of CV Raman
- In 1904, Raman, who was the son of a school teacher, excelled brilliantly in his studies faster than anyone else and graduated at the age of 16.
- He graduated from the University of Madras. The physicist also made history there by winning gold medals in English and physics as core subjects.
- While the professor was in college, he published his first ever scientific paper in the Philosophical Magazine. The topic was “Unsymmetrical Diffraction Bands Due to a Rectangular Aperture.” He was only 18 years old then.
- 1917 was the year when Raman was awarded a professorship at Calcutta University.
- In 1924, he was elected a member of the Royal Society, and later in 1930, the British knighted him.
- 1933 marked the year he became the first director of the Indian Institute of Science.
- 1948 is known as the year in which Raman went ahead and established the Raman Research Institute. He also financed this institute with donations from private sources.
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The origin of the Raman effect
- The Physics Committee of the Royal Swedish Academy of Sciences awarded CV Raman the Nobel Prize on December 10, 1930.
- This award was given for his efforts and research on light scattering and the discovery of the Raman effect.
- The physicist wanted to understand the explanation behind the deep blue color of the Mediterranean Sea while on his 15-day return trip on the SS Narkunda.
- Raman started his research to understand the phenomenon while he was at sea and reached India.
- The professor later proved that the color of the sea is due to the scattering of light by water molecules.
- This phenomenon occurs when light encounters particles that are smaller than the wavelength of light and the light spreads out in different directions.
- According to Raman, a small fraction of the scattered light collects wavelengths other than that of the actual light because some of the energy of the incoming photons can be transferred to the molecule, providing it with an elevated energy level.
- The Raman effect is one of the most tedious things to observe, since only one in a million particles of scattered light shows a change in wavelength.
- This phenomenon is used by chemists and physicists to study a multitude of materials, and is also used in telecommunications where lower frequency photons are pumped to a higher frequency.
- Not only that, but it also finds application in the field of nanotechnology, in the study of low-frequency DNA, remote reading and mineral analysis.
Other achievements of physicists
- CV Raman became the first Indian ever to hold the post of Director of IISC, Bangalore.
- In 1933, CV Raman was the first Indian to become the Director of the Indian Institute of Science located in Bangalore. The professor held that position for four years (until 1937).
- Until 1948, the physicist continued to work at the college and remained the head of the Physics Department at IISC.
- CV Raman was the first Pallet Chair of Physics at Calcutta University.
However, the professor left his job in 1917 in order to fully devote himself to the scientific and research field.
He then accepted the offer of the Pallet Chair in Physics at the University of Calcutta, becoming the first individual to hold that position at the university.
CV Raman’s passions beyond physics
- Apart from physics, Raman was extremely passionate about Indian classical music. The professor liked it so much that he used his innovation to invent the mechanical violin.
- The physicist was very enthusiastic about the acoustics of stringed instruments.
- CV Raman was always fascinated by the phenomenon of sound and notes used to create the ‘Jugalbandi’ of art and science.
- Not only that, but he also conducted research at the ‘Indian Association for the Cultivation of Science (IACS)’.
- The physicist later discovered the ‘Raman curve’, a frequency response curve that relates a violin’s frequency response to its quality.
Important days and dates in November 2023
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Source: HIS Education