Physics PPSC Past Papers MCQS With Quiz Tests

Physics Objective Type MCQs quiz test for PPSC, PMS, NTS, PTS, FPSC, SPSC, BPSC exams preparations. Learn Physics Basics MCQs for jobs tests and interviews preparations online. Online particle physics MCQs fundamentals of physics with solved quizzes. Physics Lecturer Punjab Higher Education Department Past Papers MCQs With Answers.
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Physics Solved MCQs Online Quiz Test

Q.1: When we excite some atoms by heat collision or electrical discharge they will——–?

  1. radiate electromagnetic energy with a continuous distribution of wavelength
  2. absorb particular wavelengths when white light is incident on them
  3. radiate electromagnetic energy of discrete characteristic wavelength
  4. emit either invisible or visible light


Q.2: Which one of following postulate is in accordance with the Rutherfords model ?

  1. continuous spectra for atoms
  2. discrete spectra for atoms
  3. either continuous nor discrete
  4. no spectrum


Q.3: Ground state energy of the 4th orbit in a H-atom is——-?

  1. 13.60 eV
  2. 3.40 eV
  3. 0.85 eV
  4. 1.51 eV


Q.4: The electric P.E of an electron in an orbit at a distance rn from the positive charge——-?

  1. Ke2/rn
  2. Ke2/rn2
  3. ÀKe2/rn
  4. ÀKe2/rn2


Q.5: Bracket series is obtained when all transition of electron terminate on——–?

  1. 4th orbit
  2. 5th orbit
  3. 3rd orbit
  4. 2nd orbit


Q.6: The penetrating power of X-rays depends on their——-?

  1. applied voltage
  2. frequency
  3. source
  4. all of the above


Q.7: Reverse process of photoelectric effect is——–?

  1. pair production
  2. Compton effect
  3. annihilation of matter
  4. X-rays production


Q.8: Radiation with wavelength longer than red lights——-?

  1. ultraviolet rays
  2. X-rays
  3. infra red radiation
  4. visible radiation


Q.9: In an electronic transition atom cannot emit——-?

  1. γ-rays
  2. Infra red radiation
  3. Visible light
  4. Ultraviolet rays


Q.10: X-rays are similar in nature to——–?

  1. Cathode rays
  2. Positive rays
  3. γ-rays
  4. Beta rays