Calendar: 1877-1878 Page 603

ENGINEERING AND APPLIED SCIENCES 601 To determine the specific heat of body To determine the index of refraction and the focal length of lens To determine the internal resistance of battery To determine the moment of inertia of magnet To determine the horizontal magnetic force of tbe earth To compare the capacities of two condensers iv -mvaUa SECOND AND THIRD YEARS Describe Regnault's hygrometer and explain how to find the tension of the vapour in the air by means of it thermometer tube ts been tilled with mercury and sealed how would you proceed to fix the limits of temperature to be indicated by it Define specific heat Explain how to determine accurately the mean specific heat of solid by the method of mixtures Show how to find the co-efficient of increase of elasticity of mass of air occupying constant volume luminous point is placed between two plane mirrors which are inclined to one another trace the path of pencil of rays by means of which the luminous point will be seen after three reflections by an eye placed in given position in the plane passing through the point and perpendicular to the inter- section of the two mirrors Explain the law of refraction by plane surface on the principle cf tbe wave theory of light candle is placed at given distance in front of concave mirror of given radius find the position of the image of the candle and point out when it is real and when virtual image What is its position if the flame of the candle and its image coincide Explain how to make the measurements which are required in order to find tbe index of refraction of prism of glass What is meant by Interference An isosceles prism of