LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
B.Sc. DEGREE EXAMINATION – MATHEMATICS
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THIRD SEMESTER – APRIL 2008
PH 3100 (PHYSICS FOR MATHEMATICS)
Date : 07-05-08 Dept. No. Max. : 100 Marks
Time : 9:00 – 12:00
PART A (10 x 2 m= 20 m)
- Draw graphs of kinetic and potential energies of simple harmonic motion as function of displacement.
- State the theorem of parallel axes of moment of inertia.
- State the Kepler’s laws of planetary motion.
- What is gravitational red shift?
- Define Poisson’s ratio.
- List any two phenomena which bring out the surface tension of water.
- Distinguish holonomic constraints from non-holonomic constraints.
- Two photons travel in opposite direction. Find the relative velocity of one with respect to the other.
- What are beats?
- How is a stationary wave formed?
PART B (4 x 7 ½ m = 30 m)
ANSWER ANY FOUR QUESTIONS
- Prove that a small oscillation of a liquid in a U-tube is simple harmonic.
- (a)State and explain the principle of equivalence of general theory of relativity. (b)Explain any one experiment in support of general theory of gravitation.
- Explain the torsional oscillation method of determining rigidity modulus of the material of a wire.
- (a) Write down the Lorentz transformation equations (b) Determine the velocity of a particle whose kinetic energy is equal to its rest mass energy.
- Determine the fundamental frequency and the first overtones of (i) open pipe and (ii) closed pipe
PART C (4 x 12 ½ m = 50 m)
ANSWRER ANY FOUR QUESTIONS
- (a) Find the moment of inertia of a thin rod about an axis perpendicular to its length and passing through one of its ends.(b)Obtain an expression for acceleration of a body rolling down an inclined plane
- (a) Determine the time period of an earth satellite which is orbiting near the surface of earth (b) Estimate the height of a geostationary satellite (c) What is escape velocity? Find an expression for it.
- Obtain an expression for the volume rate of flow of a liquid through a capillary tube by Poiseuilles method.
- Solve the problems of (i) Atwood’s machine and (ii) simple pendulum by Lagrangian dynamics
- What is Doppler effect? Find expression for the apparent frequency in the case of (i) source moving towards stationary observer and (ii) observer moving towards stationary source.
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