Physics MCQs Class 12

Full book Important Physics MCQs Class 12  with Answers written by Professor Mr. Usman Bhukhari Suib. These notes are very helpful in the preparation of Physics MCQs Class 12 for the students of the intermediate and these are according to the paper patterns of all Punjab boards.

Summary and Contents:
Topics which are discussed in the notes are given below:
  • Important physics class 12 mcqs all chapters for Intermediate students.
  • You have four choices for each objective type question as A, B, C and D. The choice which you think is correct.
  • 1. If the medium between the charges is not free space, then electrostatic force will be:  (a)  Increase  (b) Decrease  (c) Remain same  (d)  None of these
  • Important solved mcqs of physics class 12 for Intermediate students.
  • 2. The number of electrons in one coulomb charge is equal to:  (a) 1.6×10^-19  (b)  6.25×10^-19  (c)  6.25×10^18  (d)  6.25×10^19
  • Important class 12 physics mcqs for Intermediate students.
  • 3. Relative permittivity (€r) for air is: (a) 1.06  (b) 1.006  (c) 1.0006  (d) 1.6
  • 4. Numerical value of permittivity of free space is: (a) 9 × 10^9 Nm^ 2C^-2  (b) 8.85 × 10^-12 Nm^2 C^-2  (c) 8.85 × 10^-12 N^-1 m^-2 C^2  (d) 9 × 10^9 N^-1 m^-2 C^2
  • Important Physics Solved MCQs for Class 12 for Intermediate students.
  • 5. The electrostatic force between two charges is 42 N. If we place a dielectric of Er =2.1 between the charges then the force become equal to:  (a) 42 N  (b) 88.2 N  (c) 20 N  (d) 2 N
  • Important 12 class physics mcqs for Intermediate students.
  • 6. The force between two similar unit charges placed one meter apart in air is:  (a) Zero  (b) one N  (c) 9 × 10^9 N  (d) 9 × 10^-9 N
  • Important Physics class 12 mcqs all chapters pdf for Intermediate students.
  • 7. If the distance between the two charged bodies is halved, the force between them becomes:
  • (a) Double  (b) Half  (c) four times  (d) one fourth
  • Important Important mcqs of physics class 12 2025 for Intermediate students.
  • 8. The force between two charges is 28 N. If paraffin wax of relative permittivity 2.8 is introduced between the charges as medium, then the force reduces to:  (a) 25 N  (b) 20 N  (c) 15 N  (d) 10 N
  • Important Class 12 Physics mcqs with answers for Intermediate students.
  • 9. Two oppositely charged balls A and B attract the third ball C, when place near them turn by turn:
  • (a) Positively charged  (b) Negatively charged  (c) Electrically neutral  (d) Positively and negatively charged
  • Important Class 12 Physics mcqs with answers pdf for Intermediate students.
  • 10. The study of electric charges at rest under the action of electric forces is known as: 
  • (a) Electromagnetism  (b) Electrostatics  (c) Magnetic Induction  (d) Electric field
  • Important 12 class physics mcqs pdf for Intermediate students.
  • 11. The unit of electric intensity other than NC^-1 is:  (a) VA^-1  (b) Vm^-1  (c) VC^-1  (d) NC
  • 12. If the distance between two points charges ‘is halved, the electric intensity becomes:  (a) Half  (b) 1/4 times  (c) double  (d) 4 time
  • Important class 12 physics important mcqs for Intermediate students.
  • 13. S.I unit of strength of electric field is:  (a) J / C  (b) C / V  (c) N / C  (d) J / N
  • 14. What is the force on a proton placed between two parallel plates containing equal positive charges?
  •  (a) Zero  (b) 2.6 × 10^-19 N  (c) 9 × 10^-19 N (d) 5 × 10^-19 N
  • Important class 12 physics most important mcqs for Intermediate students.
  • 15. Concept of an electric field lines is introduced by:  (a) Coulomb  (b) Faraday  (c) Einstein  (d) Joseph Henry
  • 16. The electric fields created by positive charge is:  (a) Radically inward  (b) Zero  (c) Circular  (d) Radically outward
  • Important Most important mcqs of physics class 12 for Intermediate students.
  • 17. The direction of fields lines around an isolated negative charge ‘-q’ is: 
  • (a) Radically inward  (b) Radically out ward  (c) Elliptical  (d) circular
  • Important Important mcqs of physics class 12 for Intermediate students.
  • 18. A charge on 4 coulomb is in the field of intensity 4 N / C. The force on the charge is:  (a) 8N  (b) 16N  (c) 4N  (d) 1N
  • 19. The force on an electron in a field of 1×108 NC-1 will be:  (a) 1.6 × 10^-8 N  (b) 1.6 × 10^-11 N  (c) 1.6 × 10^-19 N  (d) 1.6 × 10^-27 N^3
  • Important physics class 12 mcqs notes for Intermediate students.
  • 20. Photo copier and inkjet printer are the application of:  (a) Magnetism  (b) Electricity  (c) Electro-magnetism  (d) Electrostatics

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