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Tutorial -2 Total marks-10 Time- 25min a) What is entropy? Write down the entropy for the reversible isothermal process. b) 3 kilogram of water at 0'C is heated to 100 C. Compute its change in 2 entropy. Assume that the specific heat of water is constant at 4190 J/kg. K over this temperature range. Ni . a) What is the refractive index of a medium? Why it can't be less than one? N b) What is interference of light? Can interference be observed for all waves? N c) Interference pattern do not have an infinite number of lines since there is a limit 2 how big 'm' can be. What is the highest-order constructive interference possible when the wavelength of a monochromatic light is 533 nm and the distance between the slits is 0.01 mm