Friday, July 29, 2016

NOU B.Sc Physics Part I 2015 Question Paper

Nalanda Open University NOU
Annual Examination - 2015
B.Sc. Physics (Honours), Part-I
Paper-I
Time: 3.00 Hrs. Full Marks: 80
Answer any Five questions, selecting at least one from each group. All questions carry equal marks.
Group - A
1. Describe Cartesian, Spherical Polar and Cylindrical Co-ordinate system and show the position Co-ordinates in each of them and establish their inter relations. Write expressions for infinitesimal volume element in each of them.
2. Explain generalized co-ordinates, degrees of freedom and constraints. Use Lagrange’s equation to discuss the motion of a compound pendulum.
3. Derive the expression for force experienced by a particle in a rotating frame of reference and hence explain the centrifugal force and the coriolis force.
4. State and explain the principle of least action. Use this to derive Lagrange’s equations of motion.
5. Define divergence and curl of a rector. Write their expressions in the Cartesian and the spherical polar co-ordinates.

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