Latest Updates on Board Special - 2014
Following are the combinations of chapters from which tests (1 Hr., 25 Marks) will be taken in days to come:
1. Electrostatics and Current Electricity: 09.01.13
2. Magnetic effect of current, magnetism and EMI: 13.01.14
3. Optics: 11.01.13
4. Alternating Current and Dual Nature of Matter & Radiation: 17.01.14
5. EMW, Semiconductor and Communication System: 15.01.14
Focus areas of tests would be the following topics:
25 Important Topics for Class - XII (Physics)
1. Gauss’s law and its applications.
2. Van de Graff generator.
3. Potentiometer with applications (internal resistance of a primary cell and comparing emf).
4. Force on a current carrying conductor.
5. Ampere’s circuital law and its applications (solenoid and toroid).
6. Force between two parallel currents.
7. Torque on a current carrying coil.
8. Moving coil galvanometer.
9. Time period of a bar magnet placed in an external magnetic field.
10. A. C. Generator.
11. Power dissipated in LCR.
12. Refraction through a spherical surface.
13. Lens makers’ formula.
14. Compound microscope and telescope (image formation and derivation of magnification).
15. Huygens’s principle used for law of reflection and refraction.
16. Derivation of fringe width.
17. Effects of photoelectric current on different parameters (with graph).
18. Davisson – Germer experiment.
19. Binding energy curve.
20. Half wave and full wave rectifiers.
21. Zener diode and its application as voltage regulator.
22. NPN – CE transistor amplifier.
23. Transistor as an oscillator.
24. Modulation and its necessity.
25. Amplitude modulation and detection with block diagrams.
All the Best!!
