An Elementary Course in Experimental Physics

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Page 49 - The index of refraction is equal to the ratio of the sine of the angle of...
Page 17 - At the same time measure the difference in level between the mercury in the two arms of the U-tube.
Page 13 - If the radii, of the tube, and of the basin, of a barometer, be 1 and 3 ; and the index shews, at sight, the height of the mercury in the tube, above that in the basin ; prove that the inch upon the scale : a real inch :: 8 : 9, the thickness of the tube being neglected.
Page 60 - ... pole of such strength that it will exert a force of one dyne upon an equal pole at a distance of one centimeter in air.
Page 23 - Specific Heat. The specific heat of a substance is the ratio of the heat required to raise the temperature of unit weight of the substance 1 deg.
Page 64 - Reverse the magnet and repeat the measurements of (a). (c.) Repeat (a) and (b) with the magnet on the other side of the compass-needle. II. (a.) Suspend a carriage for the magnet by two fine parallel wires of equal length, adjustable from above, so that they are east and west of each other. Place a brass rod of about the same size as the magnet in the carriage and carefully draw a line parallel to the rod on a piece of paper placed underneath it. Remove the brass rod and place the magnet in the carriage....
Page 49 - For one and the same medium, and the same ray of light, the ratio of the sine of the angle of incidence to that of the angle of refraction is a constant quantity for the same medium and the same ray.
Page 33 - Two equal, parallel forces in opposite directions constitute what is called a couple. The perpendicular distance between them is called the arm of the couple.
Page 14 - ... in a tube over mercury or water, and the level of the liquid inside the tube is higher than that outside, the gas is under diminished pressure, the amount of diminution depending on the height of the column of mercury or water in the tube. Thus, if the arrangement be as represented in Fig.
Page 24 - calorie" used in this definition can be defined as the amount of heat required to raise one gramme of water one degree Centigrade. It will be seen from this that the term "specific heat...

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