Long questions MECHANICS 1. State and prove triangle law of vector addition. 2. state and prove parallelogram law of vector addition. 3. State and prove conservation of linear momentum for two body system. 4. State and prove work energy theorem. 5. Prove that the mechanical work is conserved in a gravitational field. 6. Prove in elastic collision in one dimension, velocity of approach is equal to velocity of separation. 7. What is projectile. Prove that the path followed by projectile is parabolic in nature also find the expression for max. height, horizontal range and time of flight. 8. Prove that angle of repose is equal to the angle of friction. 11. Find the expression for work done by couple. 12. Show that the work done by variable force is numerically equal to the area under Force displacement graph. 13. Find the expression for centripetal acceleration. 14. What is conical pendulum. Find the expression for its time period. 16. How does acceleration due to gravity vary according to height and depth? find expressions. 17. How does acceleration due to gravity vary with rotation. Find its effect at poles and at equator. 18. What is escape velocity. Find the expression for it. 19. find the expression for orbital velocity. Hence its time period. 20. Find the total energy of the satellite. 21. What is SHM? Find the expression for displacement, velocity and acceleration of body in SHM. 22. Find the expression for time period of pendulum. 23. Find the energy of the body in SHM. 25. Find the relation between Moment of inertia and angular momentum. 26. Find the expression for energy stored in a stretched wire. 28.Define surface tension and surface energy. Find the relation between them. 29. Find the expression for capillary rise. 30. State and prove Bernouli theorem. 31. Prove newtons formula for viscosity hence find the dimensions of coefficient of viscosity. 33. How can you determine coefficient of viscosity in lab?/ Find the expression. Heat and thermodynamics i) find relation between coefficient of linear, superficial and cubical expansion. ii) Prove gamma R= gamma a + gamma g iii) Cp- Cv =R iv) Find the equation for adiabatic process. v) Petrol engine vi) diesel engine vii) Find specific heat capacity by method of mixture. viii) Describe Searles method for determination of thermal conductivity. viii) prove that p= one by three row c bar square. ix) Prove PV= nRT x) Prove boyles law, charles law and PV= nRT from kinetic theory of gases. xi) What is perfectly black body. Describe perfectly black body in practice. Optics i) lateral shift ii) minimum deviation iii) Deviation by small angled prism. iv) Lens Maker Formula v) Astronomical telescope. vi) Thin Lenses in contact. vii) Mirror formula for convex mirror. viii) Achromatic combination of lenses. ix) Microscope.. Electrostatics i) Can you charge a body positively by induction? ii) Can you charge a body negatively by induction? iii) State and explain gauss law. Apply it to find electric field in a infinite plane sheet, infinitely long charged rod, plane sheet. iv) Find the expression for potential at a point due to point charge. v) Find the potential difference between two points. vi) Relate potential difference and electric field intensity. vii) Find the equivalent capacitance of the three capacitors conected in i) Parallel ii) Series viii) Find the energy stored in capacitor. See if u know or not...
Posted on: Sat, 18 Oct 2014 12:16:35 +0000
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