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12th physics Important Questions 2020-2021

12th physics Important Questions 2020-2021:- These are the best 12th physics important questions with answers pdf state board of Tamilnadu. Students want a quality 12th physics important questions with answers pdf. So we shared this study material in pdf. This for the 12th physics important questions English medium, we also have the 12th physics important questions English medium Study material. Please follow the link given in this page

12th physics Important Questions 2020-2021

12th Physics Important 5Mark Questions 2020-2021 New syllabus PHYSICS FIVEMARKS

  1. what is a rectifier? explain full-wave rectifier?
  2. Explain the basic elements of an electronic communication system.
  3. what are the advantages and disadvantages of Robotics?
  4. Explained emission and absorption spectra with their types?
  5. What are electromagnetic waves? write down the properties of electromagnetic waves?
  6. Obtain the lens maker’s formula and mention its significance.
  7. Derive the mirror equation and the equation for lateral magnification.
  8. Discuss the applications of nanomaterials in various fields.
  9. Explain the logic symbol,logic equation,truth table of OR,AND,NOT,NOR,NAND,and EXOR gates.
  10. Explain the Fizeau method.
  11. Obtain the law of radioactivity and hence derive the half-life period.
  12. explain the .J.Thomson experiment to determine the specific charge of an electron.
  13. Explain the construction and working of the transformer.
  14. Explain the working of a single-phase AC generator as necessary.
  15. Explain the RLC circuit and hence derive an expression for phase angle between the applied voltage and current.
  16. Obtain the condition for bridge balance Wheat stone’s bridge.
  17. How the emf of two cells are compared using a potentiometer.
  18. State and discuss the microscopic and macroscopic forms of ohm’s law.
  19. Explain the resistances in series and parallel.
  20. Explain in detail the construction and working of a Van de Graaff generator.
  21. Derive an expression for electric potential due to an electric dipole.
  22. Derive an expression for debt of lie wavelength and for electrons.
  23. Electron microscope/Davisson–Get mere experiment.
  24. Magnetic field due to straight conductor using Biot savert laworampere’s circuital law.
  25. Explain in detail the construction and working of cyclotron.
  26. Axial line/Equatorial line–electrostatics and magnetism.

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