problem 1) With theory, describe the Maxwell’s needle method of determining the rigidity modules of the material of the wire.
problem 2)(a) describe the method of Describe the surface tension of a liquid using Searle’s tensional balance.
(b) Using Stoke’s law, obtain expression for the co-efficient of viscosity of highly viscous liquid.
problem 3)(a) State and describe laws of osmotic pressure. describe an experiment to measure the osmotic pressure.
b) Describe transpiration and transfusion.
problem 4)(a) Describe the statistical part of Forbe’s experimental method of determining the thermal conductivity of a solid substance.
(b) describe the film method of determining the thermal conductivity of a liquid.
problem 5)(a) Define entropy. Describe the change of entropy in Carnot’s cycle.
(b) Describe the function of refrigeration.
problem 6) Demonstrate that couple required per unit twist in the case of a cylinder is C = π ηr^{4}/^{ }–2l.