Cluster · Famous Scientists and Scientific Discoveries
| Question | Category | Subtype | Difficulty | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Which postulate of Bohr’s model of the atom explains the stability of electron orbits and how is this stability achieved according to the model? pipeline-1323736
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bihar_police | — | intermediate | |||||||||||
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Which of the following pairs of physicists and their contributions/discoveries is INCORRECT? pipeline-1307842
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bihar_police | — | intermediate | |||||||||||
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The SI unit of radioactivity, representing the activity of a quantity of radioactive material, is named after which scientist? pipeline-1302562
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bihar_police | — | intermediate | |||||||||||
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Match the following physical phenomena with their respective principles or laws:
pipeline-1302521
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bihar_police | match_following | intermediate | |||||||||||
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As per physicists and their major contributions/discoveries, which of the following pair is INCORRECT? pipeline-1306913
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bihar_police | — | intermediate | |||||||||||
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The theory that dinosaurs were driven to extinction by the aftermath of a large asteroid impact on Earth was given by ________. pipeline-436012
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bihar_police | — | intermediate | |||||||||||
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Which among the following first predicted existence of the Demon Particle? pipeline-442183
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bihar_police | — | intermediate | |||||||||||
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Who was the first to experimentally determine the value of the universal gravitational constant (G)? pipeline-442270
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bihar_police | — | intermediate | |||||||||||
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Which atomic model discovered the nucleus of an atom? pipeline-436007
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bihar_police | — | intermediate | |||||||||||
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Which among the following scientists proposed that no two electrons can occupy the same quantum state simultaneously? pipeline-435695
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bihar_police | — | intermediate | |||||||||||
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According to the Quantum Theory of Plank, what is the nature of Electromagnetic radiation? pipeline-413011
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bihar_police | — | intermediate | |||||||||||
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Which of the following particles were made to fall on a thin gold foil by Ernest Rutherford? pipeline-412511
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bihar_police | — | intermediate | |||||||||||
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Which of the following quantum numbers can distinguish between two electrons present in the same orbital? pipeline-412508
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bihar_police | — | intermediate | |||||||||||
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Rutherford's alpha particles scattering experiment resulted into the discovery of _____. pipeline-1172215
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rajasthan | — | intermediate | |||||||||||
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Becquerel, which is equal to one disintegration per second (dps) is represented by which symbol? pipeline-1362170
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up_police | — | intermediate | |||||||||||
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Who is known as the 'father of nuclear physics'? pipeline-1360381
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up_police | — | intermediate | |||||||||||
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Which of the following pairs of physicists and their contributions/discoveries is INCORRECT? pipeline-1363492
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up_police | — | intermediate | |||||||||||
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The photoelectric effect demonstrates which nature of light? pipeline-1354558
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up_police | — | intermediate | |||||||||||
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With the Theory of Relativity, __________________ transformed the landscape of physics, this theory majority contributed to designing the theory of Quantum Mechanics. pipeline-1036361
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rpf | — | intermediate | |||||||||||
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Theory of Relativity was given by: pipeline-504045
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rpf | — | intermediate | |||||||||||
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Which atomic model discovered the nucleus of an atom? pipeline-481705
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rpf | — | intermediate | |||||||||||
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Which law describes the spectral density of electromagnetic radiation emitted by a black body in thermal equilibrium? pipeline-49285
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rpf | — | intermediate | |||||||||||
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The theory of Relativity was proposed by _______. pipeline-73015
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rpf | — | intermediate | |||||||||||
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Which of the following is discrete in Bohr's theory? pipeline-24804
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rpf | — | intermediate | |||||||||||
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When did Heinrich Hertz discover the photoelectric effect and observe that shining ultraviolet light on the electrodes caused a change in voltage between them? pipeline-1319106
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defence | — | intermediate | |||||||||||
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Which of the following principles explains why no two electrons in the same atom can have the same set of four quantum numbers? pipeline-1296788
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defence | — | intermediate | |||||||||||
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The _______ explains how electrons fill up orbitals and shells inside an atom. pipeline-1266312
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defence | — | intermediate | |||||||||||
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Match the following.
pipeline-1272631
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defence | match_following | intermediate | |||||||||||
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Which postulate of Bohr’s model of the atom explains the stability of electron orbits and how is this stability achieved according to the model? pipeline-1272647
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defence | — | intermediate | |||||||||||
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Which of the following pairs of physicists and their contributions/discoveries is INCORRECT? pipeline-1252041
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defence | — | intermediate | |||||||||||
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Match the following physical phenomena with their respective principles or laws:
pipeline-1252039
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defence | match_following | intermediate | |||||||||||
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“The electron revolves around the centre of the atom in a circular path without “losing energy.” Who said this? pipeline-1242114
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defence | — | intermediate | |||||||||||
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Which of the following pairs of physicists and their contributions/discoveries is INCORRECT? pipeline-1255147
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ib | — | intermediate | |||||||||||
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Which postulate of Bohr’s model of the atom explains the stability of electron orbits and how is this stability achieved according to the model? pipeline-1251809
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ib | — | intermediate | |||||||||||
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Which of the following principles explains why no two electrons in the same atom can have the same set of four quantum numbers? pipeline-1111424
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delhi_police | — | intermediate | |||||||||||
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By observing the motion of objects on an inclined plane, ______ deduced that objects move with a constant speed when no force acts on them. pipeline-1103295
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delhi_police | — | intermediate | |||||||||||
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J. J. Thomson received the Nobel Prize in Physics for the discovery of _____. pipeline-1096939
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delhi_police | — | intermediate | |||||||||||
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By observing the motion of objects on an inclined plane ______ deduced that objects move with a constant speed when no force acts on them. pipeline-1106881
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delhi_police | — | intermediate | |||||||||||
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The Law of Gravitation was given by _______. pipeline-1086704
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delhi_police | — | intermediate | |||||||||||
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Who discovered the electron? pipeline-1094739
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delhi_police | — | intermediate | |||||||||||
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Who is known as the 'father of nuclear physics'? pipeline-1086701
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delhi_police | — | intermediate | |||||||||||
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Which of the following pairs of physicists and their contributions/discoveries is INCORRECT? pipeline-1082537
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delhi_police | — | intermediate | |||||||||||
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The three laws of motion were proposed by: pipeline-1084000
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delhi_police | — | intermediate | |||||||||||
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When did Heinrich Hertz discover the photoelectric effect and observe that shining ultraviolet light on the electrodes caused a change in voltage between them? pipeline-848936
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railways | — | intermediate | |||||||||||
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In 1928, which equation was derived and combines quantum theory and special relativity to describe the behaviour of an electron moving at a relativistic speed? pipeline-848931
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railways | — | intermediate | |||||||||||
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In 1932, who discovered the positron, a particle described as ‘carrying a positive charge but having a mass of the same order of magnitude as that normally possessed by a free negative electron’? pipeline-848932
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railways | — | intermediate | |||||||||||
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...................... was awarded the Nobel Prize in Physics in 1909 along with Karl Ferdinand Braun for the development of practical wireless telegraphy. pipeline-848939
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railways | — | intermediate | |||||||||||
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Which British scientist is known for developing the principle of holography in 1947 to improve the resolution of the electron microscope? pipeline-848942
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railways | — | intermediate | |||||||||||
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The quantum theory of light was given by: pipeline-853768
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railways | — | intermediate | |||||||||||
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For which discovery did William Bradford Shockley, John Bardeen and Walter Houser Brattain jointly receive the Nobel Prize in Physics in 1956? pipeline-853763
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railways | — | intermediate |