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Group (b). PHYSIOLOGY. Subject V.
Examiner-S. B. Mitra, Esq., B.Sc., M.B.
1. Write an essay on the functions, and the cir:ulation of the blood.
2. Write an essay on the utility of the nervous system to an organiza'ion like man.
Group (b). BOTANY. Subject VI.
Examiner-A. HOWARD, Esq., M.A., A.R.C.S., F.C.S., F.L.S.
1. Write a short essay on the influence of climate on vegetation.
2. Compare the advantages and disadvantages of an artificial system of classification like that of Linnaeus with those of the natural system.
Group (6). ZOOLOGY. Subject VII.
Examiner—CAPT. A. O. MACGILCHRIST, I.M.S.
1. Discuss the distinctive characters and the geographical distribution of the order Marsapialia.
2. Write an essay showing how you wonld distinguis!ı the skeleton of an Anthropoid Ape (Orang-ntan) from that of man.
Group (6). GEOLOGY. Subject VIII.
Examiner–T. H. HOLLAND, Esq., F.R.S., F.G.S., A.R.C.S. 1. Write an essay indicating the principles on which a chronological scale for stratified sediments has been established and sub-divided should contain precise references to examples showing the way in which fossiliferons strata in India have been correlated with the standard stratigraphical scale of Europe.
2. Describe a typical volcano, and the leading phenomena of volcanic action.
Group (b). MINERALOGY. Subject IX.
Examiner-T. H. HOLLAND, Esq., F.R.S., F.G.S., A.R.C.S.
1. Give an account of the mode of occurrence of Alumina amongst mineral substances,
2. Indicate the principles governing the classification of crystals.
Group (b). OPTIONAL MATHEMATICS. Subject X.
Examiner-C. LITTLE, Esq., M.A.
1. Write a short essay on Solar Eclipses.
FIRST PASS PAPER,
Examiner-A. MACDONELL, Esq. M.A.
The figures in the margin indicate full marks.
1. If Boyle's law were true for all pressures the product pu would be 8 constant for the same temperature. How does it really change with the pressure ?
2. Distinguish between transverse and longitudinal vibrations. Give 6 examples. Describe how a sound wave is propagated in air.
3. State the laws of the transverse vibrations of a stretched string. 3 You are required to raise the pitoh of a string from D to E, i.e., to in. 4 crease the vibration in a given time in the ratio of 10 to 9. How could this be done ?
4 What do you mean by saturated vapour ? A barometer stands at 4 76 cm.
A little water is allowed to pass up the tube. Supposing there 5 is enough water to saturate the space above the mercury, what will be the readings of the barometer at 37°, 43°, 68°, 84° C. respectively ? The pressure of saturated vapour is given by the curve.
5. How is the specific heat of a body found by the method of mixo 6 tures ?
The following figures were found in the determination of the specific heat of a metal. Calculate the specific heat.
Weight of metal
31° 06 0. Final temperature of water
32° 230. Specific heat of brass
•086 Specific heat of silver
056 6. Find the formula which connects the distances of object and im- 6 age from a thin lens. A convex lens, of 4 inches focal length, is used to project the image
5 of a candle flame on a screen. Where must the candle and screen be placed with reference to the lens that the image may be ten times as long as the flame ?
7. What is the use of a lit and of a collimating lens in a spectro8. Define magnetic declination. Describe in a general way how the 2,
6 declination differs at different places of the earth's surface. proximately its value near Calcutta ? 9. Describe Faraday's 'ice-pail experiment and state the conclusions
9 to be drawn from it. 10. You are given a sensitive galvanometer and a battery whose car.
5 rent is too strong to be sent through the galvanometer without injuring it. What addition to the galvanometer would you reqnire in order to measure the current ?
What is ap
Find the total resistance between the points A and B in the circuit drawn.
Each sumber means the resistance in ohms of the corresponding part of the circuit.
11. Give some account of Kathode rays.
Note.- Marks will be given for neatness in drawing figures ; and no marks will be given for any numerical example which is not fully worked out.
SECOND Pass PAPER.
Examiner--A. MACDONELL, Esq., M.A.
Candidates were required to perform three experiments taken from the prescribed course.
FIRST HONOUR PAPER.
Examiner-A. MACDONELL, Esq., M.A.
The figures in the margin indicate full marks.
1. What is meant by diffusion of gases ? Give an account of experiments on the subject, and state what results have been obtained.
2. Define Young's Modulus, limits of elasticity, elastic fatigae.
What weight must be hung on an iron wire, .22 in diameter, to stretch it 1/1000 part of its length ? Young's Modulus for iron = 13000 tons per
3. What reason is there for believing that there is a tension at the free surface of liquids ? Give an accouýt of phenomena which could be explained on this snpposition.
4. Musical notes differ in intensity, pitch, and quality. What are the corresponding differences in the vibrations which produce the notes ?
5. Deseribe the formation of nodes and loops. What is the state of the air at a node and at a loop in a sounding pipe ?
6. How is liquid air produced ?
7. The temperature at wbich a solution solidifies is lower than that of the pare solvent. Discuss this statement.
8. The coefficient of cubical expansion of glass is 254 x 10-7, and of mercury 182 x 10-6. What does this mean, and how is the first number determined ?
What fractional part of glass bulb must be filled with mercary so that the volume of the part not occupied by mercary shall remain unchanged when the temperature alters ?
9. Show how to find the weight of a given volume of moist air.
A closed glass globe whose volume is 500 c.c. is weighed in moist air when the barometer stands at 750 mm and the temperature is 27°C. Find the loss in weight, given that the weight of 1 litre of dry air at 0° ann 760 m. is 1.3 grammes, that the specific gravity of aqueous vaponr is g, and that the pressure of aqueous vapour at 27°C = 26.5 mm.
10. Describe a method showing and measuring the power gases bave of absorbing radiant energy, and give & short account of the regnlts obtained.
1. A is the centre of a concave mirror, C its centre of curvature. The successive figures on both sides of the mirror are at a distance from each other equal to half the radius of curvature, and the distances between successive figures are supposed to be further divided. Prove that if an object be placed at any position, say -4, (a) its image will be at the point indicated by inverting the figure, i.e. at -1, (b) the magnification will be-1. [NOTE-A minus sign attached to the fraction indicating the magnification means that the image is inverted.]
2. Describe a method of projecting on a screen a magnified image of a picture.
3. Define deviation and dispersion. In a telescope deviation is required but not dispersion, in a direct vision spectroscope dispersion but not deviation. How is this effected ?
4. What is meant by the interference of light? Describe the method of producing interference bands either by a biprism or by Fresnel's mirrors.
5. Find the total action of a bar magnet on a small magnet (a) when • broadside on', (b) when 'end on'.
6. Define potential, equipotential surface, and lines of force. How do the lines of force lie with reference to the equipotential surfaces ?
An uncharged insulated conductor is brought near a positively charged body. One end becomes charged with negative and the other with positive electricity, but the potential is the same all over the surface. Explain this.
7. A.conductor moves with given velocity in a uniform magnetic field. What is the E.MF. induced ?
A Faraday disk whose diameter is 30 cm. tarns at the rate of 3000 revolutions per minute in a field whose strength is 4000 lines per square
3 7 5
3 2 6
6 2 6
centimetre and whose direction is perpendicalar to the disk. Find in volts the E.M.F. generated.
8. Define specific resistauce.
The specific resistauce of copper and aluminium are approximately in the ratio of 15 to 29. The specibc gravity of copper is 8-93, of alumini. um 2:65. Show that for equal conductivity the weight of aluminium required is about half that of copper.
9. A vertical wire carries a current. What is the nature of the mag. netic field near it? If another parallel wire is brought near it, what is the change in the field when the current in it is (a) in the same direction, (b) in the opposite direction, to that in the first ?
10. Why is it economical to transmit electric energy at a high poten• tial ? Describe in a general way the arrangements made for transmitting energy electrically to a considerable distance.
THIRD HONOUR PAPER.
Examiner-A. MacDONELL, Esq., M.A.
1. Verify Boyle's Law and plot your results.
First Pass PAPER.
Pupar set by-W. TATE, Esq., A.R.C.S., F.C.S.
Examiner-J. A. CUNNINGHAM, Esq., B.A., A.R.C.Sc.I.
The figures in the margin indicate full marks, 1. If a quantity of water be saturated with air and the dissolved air be subsequently extracted from the water, it is found on analysis to con. tain a greater percentage of oxygen than the original air.
What expl:unation can be given of this phenomenon ? Describe a method suitable for the analysis of the extracted air.
2. Outline the methods by which you could prepare :-(a) barinm chloride from barytes, (b) crystalline copper sulphate from metallic copper, (c) arsenious oxide from any mineral arsenide. Give equations.
3. Give a detailed account of the use of nitrogen compounds in the manufacture of salphuric acid, showing especially the reactions in which