Mastery Quiz (See related pages) 1 The angle that a reflected light ray makes with the surface normal A) is smaller B) the same size C) greater than the angle that the incident ray makes with the normal 2 The speed of light in glass is A) smaller than B) the same as C) greater than the speed of light in a vacuum 3 The index of refraction is calculated as A) the ratio of the speed of light in the material to that in a vacuum B) the ratio of the speed of light in a vacuum to that in the material C) the product of the speed of light in a vacuum to that in the material D) the square root of the speed of light in the material 4 An image for which the light rays actually intersect at the location of the image is a(n) image 5 An image for which the light rays do not intersect at the location of the image is a(n) image. 6 The variation of the index of refraction of a material with wavelength is called A) reflection B) refraction C) inversion D) dispersion 7 The intersection point for the light rays entering a lens in a path parallel to the axis is called the A) aperture B) surface normal C) focal point D) vertex 8 The magnification, m, is defined in terms of the image distance, i, and the object distance, o, as A) m = i/o B) m = o/i C) m = -i/o D) m = -o/i 9 The focal length of a concave mirror is A) positive B) a negative C) zero D) infinity 10 The focal length of a converging lens is A) positive B) negative C) zero D) infinity
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