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" PRA, the angle which the incident ray makes with the normal to the surface... "
A Treatise on the Higher Plane Curves: Intended as a Sequel to A Treatise on ... - Page 118
by George Salmon - 1852 - 316 pages
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A Treatise on the Higher Plane Curves: Intended as a Sequel to A Treatise on ...

George Salmon - Conic sections - 1852 - 329 pages
...triangles equal to the given ratio OA : OR. The ratio RA : RM is equal to sinRBA : sinRBM ; but RBA = PR A, the angle which the incident ray makes with the normal...normal; hence the ratio RA : RM is also given. Now since Now, a Cartesian oval is defined as the locus of a point whose distances from two given foci are connected...
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Introductory Course of Natural Philosophy for the Use of Schools and Academies

Adolphe Ganot - Physics - 1865 - 518 pages
...ray meets the reflecting surface, is called the point of incidence ; thus, D is a point of incidence. The angle which the incident ray makes with the normal to the reflecting surface at the point of incidence, is called the angle . of incidence; thus, CD A is an...
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A Treatise on the Higher Plane Curves: Intended as a Sequel to A Treatise on ...

George Salmon - Curves, Algebraic - 1879 - 424 pages
...smRBM; but RBA = PRA, the angle which the incident ray makes with the normal to the curve, and RBM=PRM, the angle which the refracted ray makes with the same...; hence the ratio RA : RM is also given. Now since AM. RB + MB. AR = RM. AB, if we denote the distances of M from A and B by, p, p', these distances are...
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Light for Students

Edwin Edser - Light - 1902 - 604 pages
...rays, together with the normal to the surface, lie in a single plane, termed the Plane of Incidence. The angle which the incident ray makes with the normal to the surface is termed the Angle of Incidence. Now, light-waves in which the displacements are perpendicular to...
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A Syllabus of a Course in Elementary Physics

Frederick E. Sears - 1905 - 52 pages
...object distance of object from mirror. REFRACTION OF LIGHT. Definitions : The angle of incidence is the angle which the incident ray makes with the normal to the surfaces, drawn through the point at which the ray meets the surfaces. The angle of refraction is the...
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Physical Measurements in Sound, Light, Magnetism and Electricity

Ralph S. Minor - Physical measurements - 1906 - 268 pages
...n = 1 + \ ; 3 — I (*) This determines the refractive index in terms of the angle of the prism and the angle which the incident ray makes with the normal to the surface. Derive equation (2). For the case of grazing incidence, the direction being reversed, the angle i will...
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An Elementary Text-book of Physics: Light

Robert Wallace Stewart - Light - 1909 - 236 pages
...refracted ray is continued into the second medium in a direction differing from that of the incident ray. The angle which the incident ray makes with the normal to the surface of separation at the point of incidence, is called the angle of incidence, and the angle which the...
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The Refractive and Motor Mechanism of the Eye

William Norwood Souter - Eye - 1910 - 374 pages
...incidence bears a constant ratio to the sine of the angle of refraction. The angle of incidence is the angle which the incident ray makes with the normal to the surface (NSR) and the angle of refraction is the angle which the refracted ray makes with the normal (N, SR,)...
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Photography: Its Principles and Practice; a Manual of the Theory and ...

Carroll Bernard Neblette - Photography - 1927 - 718 pages
...alteration in the direction of a ray upon passing from one medium to another is known as refraction. The angle which the incident ray makes with the normal to the surface at the point of separation of the two mediums is known as the angle of incidence, while the angle of...
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The London, Edinburgh and Dublin Philosophical Magazine and Journal of Science

Physics - 1861 - 612 pages
...themillim.), I found— where 8 is given by the equations tan(45°-S) = or sin fa = sin * ft, i/3 being the angle which the incident ray makes with the normal to the grating, £/9, that made by the refracted ray with the same line, while fti is the diffraction within...
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