Loyola College B.Sc. Physics Nov 2003 Physics For Chemistry Question Paper PDF Download

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PHYSICS

FOURTH SEMESTER – NOVEMBER 2003

PH 4201 / PHY 201 PHYSICS FOR CHEMISTRY

 

08.11.2003                                                                                                                                     100 Marks

1.00 – 4.00

 

SECTION – A

 

Answer ALL questions                                                                                          (2 x 10 = 20 marks)

 

  1. What is a polarimeter?
  2. What is diffraction?
  3. Give expressions for the combined capactiance of three capacitors connected in (I) series (ii) parallel.
  4. State Lenz’s law.
  5. Define half-life period of a radioactivity substance
  6. State Pauli’s exclusion principle.
  7. List any four characteristics of an operational amplifier.
  8. Sketch an half-adder.
  9. What is Crystal lattice?
  10. Define packing factor.

 

SECTION – B

 

Answer any FOUR questions                                                                    (7.5 x 4 = 30 marks)

 

  1. Discuss in detail polarisation by reflection.
  2. Derive an expression for the energy stored by a charged capacitor.
  3. Explain the binding energy of a nucleus and derive an expression for the same.
  4. With a need sketch derive an expression for the gain of an inverting amplifier using an operational amplifiers.
  5. Tabulate the main characteristics of the seven crystal systems.

 

SECTION – C

 

Answer any FOUR questions:                                                                 (12.5 x 4 = 50 marks)

 

  1. Explain how a plane transmission grating can be used to determine the wave length of a spectral line.
  2. Explain with necessary theory how a Carey-Foster bridge may be used to compare two nearly equal resistances.
  3. State Bohr’s postulates of hydrogen atom model. Obtain expressions for the radius and energy of the nth
  4. Realise operational amplifier as
  • adder (b) differentiator (c) integrator
  1. How are lattice parameter of a crystal found using Bragg’s x-ray spectrometer?

 

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