C.V. Raman was awarded the Nobel Prize in Physics in which year?
- A.1928
- B.1930
- C.1954
- D.1983
Correct answer
Explanation
The correct answer is B, 1930. Raman announced in 1928 that light scattered by a transparent medium contains components of changed wavelength, a shift that reveals the energy levels of the scattering molecules, and the Nobel Prize in Physics followed in 1930, making him the first Asian to receive a Nobel in a science. Option A is wrong because 1928 is the year of the discovery itself, now marked as National Science Day on the twenty-eighth of February. Option C is wrong because 1954 is the year Raman received the Bharat Ratna, in the first list of that award. Option D is wrong because 1983 is the year Subrahmanyan Chandrasekhar shared the Nobel Prize in Physics for his work on the structure and evolution of stars. Keep the four numbers apart: discovery 1928, Nobel 1930, Bharat Ratna 1954, and Chandrasekhar in 1983.
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Practice Questions
View allAccording to which theory or law can any object with mass not travel as fast as the speed of light in empty space, that is in vacuum?
- A.Dalton law
- B.Corpuscular theory of light
- C.Theory of relativity
- D.Henry law
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In Einstein's special theory of 1905 the energy required to accelerate a body with mass rises without limit as its speed approaches that of light, so such a body can come close to but never reach the speed of light in vacuum, which is the same for every observer.
Read the full explanation →Who discovered the electron?
- A.Ernest Rutherford
- B.J.J. Thomson
- C.James Chadwick
- D.Niels Bohr
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Thomson. Working with cathode rays in a discharge tube in 1897, he showed that the rays were a stream of negatively charged particles far lighter than any atom, and he measured their charge to mass ratio, which established the electron as the first known subatomic particle.
Read the full explanation →The neutron was discovered in 1932 by which scientist?
- A.James Chadwick
- B.Eugen Goldstein
- C.Max Planck
- D.Werner Heisenberg
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By bombarding beryllium with alpha particles he obtained a penetrating radiation that could not be bent by electric or magnetic fields, and he showed it to consist of neutral particles of about the mass of a proton, for which he received the Nobel Prize in Physics.
Read the full explanation →The three laws of planetary motion were given by whom?
- A.Nicolaus Copernicus
- B.Galileo Galilei
- C.Johannes Kepler
- D.Isaac Newton
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Working on the observations of Tycho Brahe he found that a planet moves in an ellipse with the sun at one focus, that the line from the sun to the planet sweeps equal areas in equal times, and that the square of the orbital period is proportional to the cube…
Read the full explanation →Hydraulic brakes in a motor car work on which principle?
- A.Archimedes principle
- B.Pascal law
- C.Bernoulli principle
- D.Hooke law
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Pressure applied to an enclosed liquid is transmitted equally and undiminished in every direction, so a small force on the narrow master cylinder of a brake creates a much larger force on the wide piston at each wheel, which is also how a hydraulic press and a hydraulic lift work.
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