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MCQs

Total Questions : 622 | Page 5 of 63 pages
Question 41. Rutherford discovered
  1.    Electron
  2.    Proton
  3.    Neutron
  4.    Nucleus
 Discuss Question
Answer: Option D. -> Nucleus
Answer: (d).Nucleus
Question 42. In the absence of magnetic field all energy levels have
  1.    Same energy values
  2.    Different energy values
  3.    Constant energy values
  4.    No energy values
 Discuss Question
Answer: Option A. -> Same energy values
Answer: (a).Same energy values
Question 43. In the ground state of an atom, the electron is present
  1.    In the nucleus
  2.    Close to the nucleus
  3.    In the second shell
  4.    Away from the nucleus
 Discuss Question
Answer: Option B. -> Close to the nucleus
Answer: (b).Close to the nucleus
Question 44. The canal Rays were proposed by
  1.    Goldstein
  2.    Dalton
  3.    J.J. Thomson
  4.    Millikan
 Discuss Question
Answer: Option A. -> Goldstein
Answer: (a).Goldstein
Question 45. Stoney proposed the name of
  1.    Electron
  2.    Proton
  3.    Neutron
  4.    Positron
 Discuss Question
Answer: Option A. -> Electron
Answer: (a).Electron
Question 46. Value of energy for second orbit of hydrogen in kilo joule per mole is
  1.    −328.32
  2.    −1313.31
  3.    −145.92
  4.    −82.08
 Discuss Question
Answer: Option A. -> −328.32
Answer: (a).−328.32
Question 47. Total energy of electrons consist of
  1.    three energies
  2.    two energies
  3.    four energies
  4.    five energies
 Discuss Question
Answer: Option B. -> two energies
Answer: (b).two energies
Question 48. Movement of positive rays is from holes in
  1.    anode
  2.    neutrons
  3.    cathode
  4.    anti neutron
 Discuss Question
Answer: Option C. -> cathode
Answer: (c).cathode
Question 49. Relative charge on neutron is
  1.    1
  2.    2
  3.    3
  4.    0
 Discuss Question
Answer: Option D. -> 0
Answer: (d).0
Question 50. In case of radiation amount of energy is proportional to
  1.    frequency of radiation
  2.    density of radiation
  3.    waves
  4.    light
 Discuss Question
Answer: Option A. -> frequency of radiation
Answer: (a).frequency of radiation

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