 | Charles Josiah Woodward - Electricity - 1890 - 228 pages
...reviewed through the plate, but an inappreciable displacement for distant objects. (Int.Sc., 1888.) 4". Define the focal length of a spherical reflecting...three times ? Would the im'age be real or virtual? ' (Int.Sc, 1888.) 5. What do you understand by the intensity of illumination at a point ? and how would... | |
 | Daniel Evan Jones - 1896 - 378 pages
...the position and size of its image, the focal length of the mirror being 6 inches. Matric. 1888. 133. How far from a concave mirror of radius 3 feet would...magnified three times ? Would the image be real or virtual ? Int. Sc. 1888. 134. A concave mirror of 2 feet focal length is placed 1 foot from an object : find... | |
 | Julius Hortvet - Physics - 1899 - 280 pages
...u, the distance of the image from the mirror to v, the distance of the object from the mirror. (2) How far from a concave mirror of radius 3 feet would...magnified, three times? Would the image be real or virtual? (3) An object is placed at a distance of 18 inches from a concave mirror I foot in radius. Find the... | |
 | Sir Richard Glazebrook - Heat - 1902 - 236 pages
...the axis of the mirror at a distance of 2 feet from it. Determine the size and position of the imngo. 8. Define the focal length of a spherical reflecting...axis of a concave spherical mirror, at a distance of 16 inches from the mirror. Determine the position and size of its image, the focal length of the mirror... | |
 | Julius Hortvet - Physics - 1899 - 304 pages
...u, the distance of the image from the mirror, to v, the distance of the object from the mirror. (2) How far from a concave mirror of radius 3 feet would...magnified three times? Would the image be real or virtual ? (3) An object is placed at a distance of 18 inches from a concave mirror I foot in radius. Find the... | |
 | Daniel Evan Jones - Mathematical physics - 1914 - 374 pages
...length of the mirror being 6 inches. Matric. 1888. 133. How far from a concave mirror of radius 3 feet k would you place an object to give an image magnified three times ? Would the image be real or virtual ? Int. Sc. 1888. 134. A concave mirror of 2 feet focal length is placed 1 foot from an object : find... | |
 | Sir Richard Glazebrook - Heat - 1914 - 500 pages
...feet, and a circular disk one inch in diameter is placed on the axis of the mirror at a distance of 3 feet from it. Determine the size and position of the...magnified three times? Would the image be real or virtual? 0. A bright object, 4 inches high, is placed on the principal axis of a concave spherical mirror, at... | |
 | 212 pages
...facts. 88. Distinguish between a real and a virtual image. How far from a concave mirror of radius 3 ft. would you place an object to give an image magnified three times? Would the image be real or virtual? 89. How could you obtain a virtual image of an object using (a) a convex lens, (6) a concave mirror?... | |
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Determine the size and position of the image. 8. Define the focal length of a spherical reflecting surface. How far from a concave mirror of radius 3 feet, would you place an object to give an image magnified three times ? Would the image be real or virtual... 