Physics – Important Question Bank for Uttar Pradesh 12th/HSC Board Exam 2019

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After the tremendous success of our last year Important Question Bank for Uttar Pradesh class 12th HSC Board Exam 2016  and 2017 we have also created a list of  Most Important Question Bank for Uttar Pradesh Intermediate class XII (HSC) Board Exam 2019 which are likely to appear in HSC Board Exams this year.

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  1. What is an Oscillator? Draw necessary circuit diagram to show the use of a transistor as an oscillator.
  2. What is a Rectifier? Draw circuit diagram to explain the use of a P-N junction diode as a full wave rectifier.
  3. Describe Weston galvanometer in detail along with a labelled diagram.
  4. What is meant by the electric dipole? Obtain expression for the intensity of electric field at a point in end on position due to an electric dipole.
  5. Derive expression for the intensity of magnetic field at a point in end on position due to a short bar magnet.
  6. What is transistor? Write its types. Also explain the working of N-P-N transistor.
  7. Differentiate between alternating current and direct current.
  8. Describe water voltameter along with a labelled diagram.
  9. What is photoelectric effect? State the laws of photoelectric emission.
  10. How should be 36 cells each of e.m.f. 1.2 volt and internal resistance 1 ohm joined so as to obtain maximum current in an external resistance 4 ohm? Calculate this maximum current.
  11. Draw electric circuit of a Wheatstone’s bridge. Explain its principle and derive the necessary condition for its balance.
  12. Find expression for the capacity of parallel plate condenser when there is partial air and partial dielectric medium in between the plates.
  13. State Gauss theorem and prove Coulomb’s inverse square law by this theorem.
  14. Write and explain Faraday’s law of electro-magnetic induction.
  15. Establish a relation between focal length and radius of curvature for spherical mirror.
  16. Write the difference between potentiometer and voltameter.
  17. What are the elements of earth magnetism? Define each of them and establish a relation between elements of earth’s magnetism.
  18. What is Thomson effect? What are its types?
  19. What do you understand by the resolving power of an eye?
  20. Explain the chemical reactions of lead accumulator during the charging and discharging process.
  21. Draw a labelled diagram of human eye and explain its accommodation power.
  22. What should be the characteristics properties of metal to be used for thermionic emission?
  23. Derive the expression for magnification of compound microscope and draw the ray diagram.
  24. Draw a ray diagram for astronomical telescope and write the formula for the length of astronomical telescope when the image formed is at least distance of distinct vision.
  25. What is drift velocity? Establish a relationship between the drift velocity and the current density.
  26. What is Polaroid? State its function and four important applications.
  27. What is an equipotential surface? Write its characteristics.
  28. Distinguish between interference and diffraction.
  29. The focal length of an objective of a telescope is 1.5 metres. What should be the focal length of eye piece to get the magnification of 25times?

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