Q.1: Who was the first Indian and Asian to win the Noble Prize in Physics in 1930?
a) Sir Chandrasekhara Venkata Raman
b) Subrahmanyan Chandrasekhar
c) Gopalasamudram Narayana Iyer Ramachandran
d) None
Ans: a) Sir Chandrasekhara Venkata Raman
(Imp Facts)
C.V. Raman was an Indian physicist who won the Nobel Prize for Physics in 1930 for his discovery of what became known as the Raman effect. C.V. Raman was born on November 7, 1888, Tiruchirappalli, (Tamil Nadu) India—died November 21, 1970, Bangalore) was an Indian physicist whose work was influential in the growth of science in India.
Q.2: National Science Day is celebrated on _________ in India?
a) 28th February b) 28th March c) 28th April d) 28th June
Ans: a) 28th February
(Imp Facts)
1986, the Government of India decided to celebrate 28th February as National Science Day. It is celebrated to honour C.V. Raman for the discovery of the Raman Effect. On February 28, 1928, he announced the discovery of the Raman Effect.
Q.3: CV Raman had given Nobel Lecture on which date?
a) December 11, 1930 b) December 11, 1931
c) December 11, 1932 d) December 11, 1933
Ans: a) December 11, 1930
(Imp Facts)
According to the website of the Noble Prize Organisation, When light meets particles that are smaller than the light’s wavelength, the light spreads in different directions. This occurs, for example, when light packets—photons—encounter molecules in a gas. In 1928 Venkata Raman discovered that a small portion of the scattered light acquires other wavelengths than that of the original light. This is because some of the incoming photons’ energy can be transferred to a molecule, giving it a higher level of energy. Among other things, the phenomenon is used to analyze different types of material.
Q.4: What was the title of the “Nobel Lecture” given by C.V. Raman on 11 December 1930?
a) The molecular scattering of light and The colour of the sea is
b) Discovery of Atmospheric Neutrino Oscillations
c) The X-ray Spectra and the Structure of the Atoms
d) Invar and elinvar
Ans: a) The molecular scattering of light and The colour of the sea is
(Imp Facts)
- Takaaki Kajita on 8 December 2015 gave Nobel Lecture on Discovery of Atmospheric Neutrino Oscillations.
- Manne Siegbahn on 11 Dec 1925 gave Nobel Lecture on The X-ray Spectra and the Structure of the Atoms.
- Charles Edouard Guillaume, 11 December 1920 gave Nobel Lecture on Invar and elinvar
Q.5: Which research journal was started and edited by C.V. Raman in 1926?
a) Indian Journal of Physics b) Nature Energy c) Review of Modern Physics d) Nature Physics
Ans: a) Indian Journal of Physics
(Imp Facts)
In 1922 he published his work on the “Molecular Diffraction of Light”, the first of a series of investigations with his collaborators which ultimately led to his discovery, on the 28th of February, 1928, of the radiation effect which bears his name (“A new radiation”, Indian J. Phys., 2 (1928) 387), and which gained him the 1930 Nobel Prize in Physics. (Source: website of Nobel Prize Organisation)
Pics Credit: The Nobel Prize Organisation