A Collection of Problems and Examples Adapted to the "Elementary Course of Mathematics.": With an Appendix Containing the Questions Proposed During the First Three Days of the Senate-House Examinations in the Years 1848, 1849, 1850, and 1851J. Deighton, 1851 - 173 σελίδες |
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Αποτελέσματα 1 - 5 από τα 15.
Σελίδα 99
... pencil . COMBINED REFLEXIONS . 1. Find the total number of images formed , when a luminous point is situated symmetrically with respect to two plane mirrors inclined at an angle of 11o 15 ' . 2. Determine the arrangement of a luminous ...
... pencil . COMBINED REFLEXIONS . 1. Find the total number of images formed , when a luminous point is situated symmetrically with respect to two plane mirrors inclined at an angle of 11o 15 ' . 2. Determine the arrangement of a luminous ...
Σελίδα 100
... pencil of rays diverges from a given point within a polished sphere , the axis of the pencil coinciding with a diameter ; find the geometrical focus after two re- flexions . 6. A luminous point is equidistant from two plane pa- rallel ...
... pencil of rays diverges from a given point within a polished sphere , the axis of the pencil coinciding with a diameter ; find the geometrical focus after two re- flexions . 6. A luminous point is equidistant from two plane pa- rallel ...
Σελίδα 101
... pencil of solar rays incident on the surface of a refracting sphere is brought to a focus upon the oppo- site surface of the sphere ; required the refractive index of the substance of which the sphere is made . 4. A small pencil of rays ...
... pencil of solar rays incident on the surface of a refracting sphere is brought to a focus upon the oppo- site surface of the sphere ; required the refractive index of the substance of which the sphere is made . 4. A small pencil of rays ...
Σελίδα 103
... pencil of rays after entering the lens is reflected , find the focus of the emerging rays . 5. A small pencil of rays diverge from a point in the axis of a double convex lens , the thickness of which equals one of its radii . Required ...
... pencil of rays after entering the lens is reflected , find the focus of the emerging rays . 5. A small pencil of rays diverge from a point in the axis of a double convex lens , the thickness of which equals one of its radii . Required ...
Σελίδα 109
... pencil of rays diverging upon it enter , and after reflexion at the silvered surface emerge by refraction ; find the geometrical focus of the emergent rays . 14. A small pencil of rays is refracted through a OPTICS . 109.
... pencil of rays diverging upon it enter , and after reflexion at the silvered surface emerge by refraction ; find the geometrical focus of the emergent rays . 14. A small pencil of rays is refracted through a OPTICS . 109.
Άλλες εκδόσεις - Προβολή όλων
A Collection of Problems and Examples, Adapted to the Elementary Course of ... Harvey Goodwin Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2019 |
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Συχνά εμφανιζόμενοι όροι και φράσεις
angular points arithmetical arithmetical mean arithmetical series axis base bisects centre of gravity chord circle concave convex lens cos² cosec curve cylinder Describe determine diameter direction distance Divide drawn elastic balls ellipse equal equation equilibrium feet find the height Find the number find the position Find the velocity fluid focal length force geometrical focus geometrical progression geometrical series given point given velocity given weight horizontal plane hyperbola immersed inches incident inclined plane inscribed latus rectum luminous point mirror motion moving Multiply observed parabola parallel parallelogram pencil of rays perpendicular placed pressure proportional prove pullies quantities radii radius ratio reflexion refracted respectively right angle shew sides sin² specific gravity sphere spherical square St John's College straight line string passing Subtract surface tangent tower triangle vertex
Δημοφιλή αποσπάσματα
Σελίδα 111 - If two triangles have two sides of the one equal to two sides of the...
Σελίδα 128 - To divide a given straight line into two parts, so that the rectangle contained by the whole and one of the parts, shall be equal to the square of the other part.
Σελίδα 111 - If a straight line be divided into two equal parts, and also into two unequal parts, the rectangle contained by the unequal parts, together with the square on the line between the points of section, is equal to the square on half the line.
Σελίδα 112 - EQUAL straight lines in a circle are equally distant from the centre ; and those which are equally distant from the centre, are equal to one another.
Σελίδα 144 - ... a circle. The angle in a semicircle is a right angle: the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Σελίδα 160 - Triangles upon equal bases, and between the same parallels, are equal to one another.
Σελίδα 112 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Σελίδα 160 - In any right-angled triangle, the square which is described upon the side subtending the right angle, is equal to the squares described upon the sides which contain the right angle.