B.Sc Chemistry Physics For Chemistry Question Paper 2008

“Loyola College B.Sc. Chemistry April 2008 Physics For Chemistry Question Paper PDF Download”

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – CHEMISTRY

FG 44

 

SECOND SEMESTER – APRIL 2008

PH 2100 / 3102 – PHYSICS FOR CHEMISTRY

 

 

 

Date : 25/04/2008                Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

PART A ( 20 MARKS)

ANSWER ALL QUESTIONS                                                          10 X 2 = 20

 

  1. When is a periodic motion said to be simple harmonic ?
  2. Define angular momentum. Give it’s unit.
  3. What is meant by parking orbit ?
  4. State the principle of equivalence.
  5. State Hooke’s law.
  6. Define surface tension. Give it’s unit.
  7. State Heisenberg’s uncertainty principle.
  8. Write down the time dependent Schrodinger equation.
  9. Distinguish between loudness and intensity.
  10. What are overtones ?

 

 

PART B (30 MARKS )

ANSWER ANY FOUR QUESTIONS.                                4 X 7.5  = 30

 

  1. Show that the oscillations of a liquid in a U tube are simple harmonic and find the time period.
  2. State and explain Kepler’s laws.
  3. Obtain an expression for the excess pressure over the curved surface of a liquid.
  4. Derive the time independent Schrodinger equation. How is the wave function interpreted ?
  5. What are beats ? Discuss any one application.

 

PART C ( 50 MARKS )

 

ANSWER ANY FOUR QUESTIONS.                                4 X 12.5 = 50

 

16.(a) Derive an expression for the acceleration of a solid sphere rolling down an inclined plane                       without slipping

(b) A particle executing simple harmonic motion in a straight line makes 120 complete oscillations            in 1 minute and its maximum velocity is 6∏ m/s .Find the length of the path and the maximum            acceleration.

  1. (a) Describe an experiment to measure the gravitation constant.

(b) Determine the escape velocity for the earth.( Radius of the earth is 6400 km and value of g at             the earth’s surface is 9.8 m/s2 )

  1. (a) Derive a relation between the three elastic modulii.

(b) Define Poisson ratio. What are the limits for this ratio?

  1. Describe the experiment of Davisson and Germer and discuss the results.
  2. Derive an expression for the velocity of transverse waves in a stretched string. Use this to explain       the laws of transverse vibrations of a stretched string.

 

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“Loyola College B.Sc. Chemistry April 2008 Physics For Chemistry Question Paper PDF Download”

by

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – CHEMISTRY

RO 31

 

SECOND SEMESTER – APRIL 2008

PH 2103 – PHYSICS FOR CHEMISTRY

 

 

 

Date : 25/04/2008                Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

SECTION – A

Answer all the questions                                                                   (10 x 2 = 20 Marks)

 

  1. What are holonomic and non-holonomic constraints?
  2. Sketch the displacement – time graph and velocity – time graph.
  3. What is meant by parking orbit for a satellite?
  4. State the Principle of equivalence of the general theory of relativity.
  5. Define surface tension and give its unit.
  6. Calculate the rigidity modulus and Poisson’s ratio for silver.

(Given, Young¢s modulus = 7.25 x 1010 N/m2 and bulk modulus = 11 x 1010 N/m2)

  1. What are optically active materials? Give two examples.
  2. In Fraunhoffer diffraction pattern due to a narrow slit, a screen is placed 2m away from the lens to obtain the pattern. If the slit width is 0.2 mm and the first minima lies 5 mm on either sides of the central maximum, find the wavelength of light.
  3. Define unit cell.
  4. Define lattice and basis.

 

SECTION – B

Answer any Four questions                                                             (4 x 7.5 = 30 Marks)

 

  1. Obtain expressions for time of flight, greatest height and range of a projectile motion.
  2. Discuss qualitatively any two experimental tests of general theory of relativity.
  3. Obtain an expression for the excess of pressure inside
  • a spherical soap bubble
  • a spherical liquid drop

 

  1. Explain the use of a plane transmission grating to measure wavelength of a spectral line.
  2. State Bragg’s law. Explain the Laue method of X-ray diffraction.

 

SECTION – C

 

Answer any Four questions                                                 (4 x 12.5 = 50 Marks)

 

  1. Set up the Lagrangian and solve the Lagrange’s equation of motion for
  1. Atwood’s machine  (6 marks)
  2. Simple pendulum (6 ½ marks)
  1. a) Describe an accurate method of determining the value of the gravitational constant G.
  1. b) Assuming the mean density of the earth as 5500 Kg/m3 and that the earth’s radius as 6400 km, find a value for the acceleration of free fall at the earth’s surface. Derive the formula used.

(G = 6.7 x 10-11 Nm2 Kg-2)                                                    (7 + 2 ½ + 3 marks)

  1. Describe Quincke’s Method of finding surface tension. Derive the formula employed.
  2. Explain the production and detection of
  • Plane polarized light (3 ½ Marks)
  • Circularly polarized light (4 ½ Marks)
  • Elliptically polarized light (4 ½ Marks)
  1. Write about Miller indices. Explain the body centered cubic and face centered cubic crystal structures.

 

 

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“Loyola College B.Sc. Chemistry April 2008 Physics For Chemistry – II Question Paper PDF Download”

by

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – CHEMISTRY

FG 9

 

THIRD SEMESTER – APRIL 2008

PH 3202 / 3200 – PHYSICS FOR CHEMISTRY – II

 

 

 

Date : 05/05/2008                Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

PART-A

 

Answer all questions                                                                                            10×2=20marks

  1. What are flip flops?
  2. What is the difference between full and half adder.
  3. State Pauli’s exclusion principle.
  4. Give any two industrial applications of x-rays.
  5. Calculate the binding energy of a Deutron. Given 1P1=1.0081amu, 0n1=1.00893amu,

1H2=2.01473amu.

  1. Describe Proton and Neutron using quark model.
  2. State the laws of transverse vibrations of strings.
  3. Mention two properties of ultra sonic waves.
  4. State Heisenberg’s uncertainty principle.
  5. Mention two situations where classical mechanics fails.

 

PART-B

Answer any four questions                                                                               4×7.5=30marks

 

  1. Explain the working of a 3 bit counter using flip flops.
  2. Explain the main aspects of photo electric effect using Einstein’s equation.
  3. What are elementary particles? How they are classified?
  4. How will you determine the velocity of sound waves in gas?
  5. Obtain the energy of a particle in a one dimensional box.

 

PART-C

Answer any four questions                                                                               4×12.5=50marks

  1. Explain the truth table of a full adder with a neat circuit.
  2. State the postulates of Bohr atom model. Obtain expressions for the radius and energy of

the nth orbit.

 

  1. Explain semi empirical mass formula for the binding energy of the nucleus.
  2. a) Explain how ultra sonic waves are generated by using piezo electric effect? (9.5)
  3. b) Mention any two uses of ultra sonic waves. (3)
  4. a) With relevant theory, explain Davison and Germer experiment for diffraction of

electrons.(10)

 

  1. b) Calculate De Broglie wave length of an electron accelerated through a potential of

150 volts.(2.5)

 

 

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