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Model 2 Mark Book Back Questions (New Syllabus) 2020

12th Standard EM

    Reg.No. :
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Physics

Time : 01:00:00 Hrs
Total Marks : 42

    Part A

    21 x 2 = 42
  1. What is mean by ‘Electric field lines’?

  2. What is Polarisation?

  3. Define electrical resistivity

  4. What is Seebeck effect?

  5. State Coulomb’s inverse law.

  6. What is meant by hysteresis?

  7. How is Eddy current produced? How do they flow in a conductor?

  8. What is meant by wattles current?

  9. Write down the integral form of modified Ampere’s circuital law.

  10. What is principle of reversibility?

  11. What is angle of deviation due to reflection?

  12. What are the salient features of corpuscular theory of light?

  13. Mention the differences between interference and diffraction.

  14. Discuss about pile of plates.

  15. It is possible for two lenses to produce zero power?

  16. Write the expression for the de Broglie wavelength associated with a charged particle of charge q and mass m, when it is accelerated through a potential V.

  17. What is isotope? Give an example.

  18. Define curie.

  19. What do you mean by leakage current in a diode?

  20. What does RADAR stand for?

  21. Why steel is preferred in making Robots?

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