Important Topics for Term -2 Physics Exam


Ch. 8  (3 marks)



  1. Sketch of EM wave.

  2. Equations for electric and magnetic vectors.

  3. Properties and uses of EM waves.

  4. Transverse nature of em-waves.

  5. Learn table from the NCERT Book. 


Ch. 9  ( 7 marks)


  1. Relations for refraction along a single refracting surface. 

  2. Lens maker’s formula.

  3. Combined focal length of the two thin lens in contact. 

  4. Prism formula.

  5. Condition for minimum deviation.

  6. Critical angle and TIR.

  7. Applications of TIR.

  8. Astronomical telescope, compound microscope.

  9. Reflecting type telescope and its advantages.

  10. Relation between real depth and apparent depth.

  11. Power of a lens and its expression with SI unit.



Ch. 10 ( 6 marks)


  1. Huygen’s theory. 

  2. Wavefront and its types.

  3. Proof of snell’s law.

  4. Condition for constructive and destructive interference for YDSE.

  5. Expression for resultant intensity and resultant amplitude for YDSE.

  6. single slit experiment.

  7. Reflection on the basis of Huygens theory.

  8. Coherent sources and conditions for obtaining coherent sources.


Ch. 11


  1. Einstein photo-electric equation.

  2. Define threshold frequency and stopping potential.

  3. Laws of photo electric emission.

  4. Slope of frequency  with slopping potential graph.

  5. Variation of slopping potential with intensity and frequency graph.

  6. De-broglies equation and concept of dual behaviour. 

  7. Properties of photons.



Ch. 12


  1. Bohr’s postulates.

  2. Geiger – Marsden experiment. 

  3. Expression for Bohr’s radius.

  4. Expression for Energy of Hydrogen atom.

  5. Expression for Rydberg’s constant. 

  6. Spectral series of hydrogen. 

  7. Ionisation energy,ground state and excited state.


Ch. 13


  1. Mass-defect and Binding energy. 

  2. Composition of nucleus.

  3. Expression for the density of nucleus. .

  4. Q -value of reaction.

  5. Mass defect and Einstein mass energy relation.

 

                   Ch 14

  1.  Pn junction under forward and reverse biased

  2. drift , diffusion and barrier potential.

  3. Charge depletion region.

  4. Energy bands and band energy gap.

  5. Energy level diagrams of of n and p type semiconductor

  6. potential barrier ,charge depletion region,energy gap

  7. half wave rectifier and full wave rectifier

  8. Photo diode,LED& solar cell.

     






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